Feb 10, 2024 · The fastest and easiest way to search for duplicates in a Google Sheet is to use the Data menu. By clicking options in a menu, this way to find and remove duplicates takes literally under 30 seconds. If you merely want to see if one particular piece of data has a duplicate, click that cell. Then go to Data -> Data clean-up -> Remove duplicates. Let’s take a look at how to highlight duplicates in Google Sheets. Recommended Videos Difficulty Easy Duration 5 minutes What You Need A computer, laptop, tablet, or phone with access to Google ...On your computer, open a spreadsheet in Google Sheets. Select the test scores. Click Format Conditional formatting. Under "Format cells if," click Less than. If there's already a rule, click it or Add new rule Less than. Click Value or formula and enter 0.8. To choose a red color, click Fill . Click Done. The low scores will be highlighted in red.Nov 2, 2020 · Click Data > Remove duplicates. You will now see a pop-up. Tick the box next to Data has header now > click Remove duplicates > click Done. You can repeat the steps for other columns as well. This is how you can highlight and remove duplicates in Google Sheets. Use Google Docs Without an Internet Connection. Highlight exact duplicates in Google sheets - Google Docs Editors Community. Highlight duplicates in two sheets or columns. Let's compare two columns in Google Sheets for matches and colour only those cells in column A that tally with cells in the same row in column C: Select the range with records to color (A2:A10 for me). Go to Format > Conditional formatting in the spreadsheet menu. Enter a simple formula to the …You can search multiple columns for duplicate data and highlight them automatically. Open your Google Sheets document. Ensure the data in your spreadsheet is organized by columns, and all columns have headings. Choose the column you wish to find duplicates in. Select Format, Conditional formatting, and the conditional formatting …Để có thể tự động tô màu giá trị trùng lặp trong Google Sheet, bạn hãy thực hiện theo các bước sau đây: Bước 1: Đầu tiên, bạn hãy bấm vào thẻ Format trên thanh công cụ => Chọn mục Conditional Formatting. Bước 2: Trong cửa …You can search multiple columns for duplicate data and highlight them automatically. Open your Google Sheets document. Ensure the data in your spreadsheet is organized by columns, and all columns have headings. Choose the column you wish to find duplicates in. Select Format, Conditional formatting, and the conditional formatting …2 ways to remove duplicates in Google Sheets; How to highlight text and cells in Google Sheets; Highlight row based on cell values in Google Sheets; Using the UNIQUE and TRANSPOSE functions together in… Using the UNIQUE function to remove duplicates in… Welcome to Spreadsheet Class! Corey Bustos. My name is Corey, I …You can search multiple columns for duplicate data and highlight them automatically. Open your Google Sheets document. Ensure the data in your spreadsheet is organized by columns, and all columns have headings. Choose the column you wish to find duplicates in. Select Format, Conditional formatting, and the conditional formatting …Related: How to Wrap Text in Google Sheets Cells to Show Full Text in Google Sheets. How to Remove Duplicates in Google Sheets. So far, we have seen how to quickly highlight duplicates in multiple rows and columns of a Google Sheet. After finding the duplicate entries, let’s say you want to get rid of those rows that contain …google sheets highlight duplicates in two columns, select range 2. Click Format, then Select Conditional formatting. The Format option is located in the main toolbar and the Conditional formatting option is near the end of the drop-down box that will appear. This help content & information General Help Center experience. Search. Clear search A CRM duplicated the company name in thousands of rows of data. I would like to identify and remove the duplicate company names using Google Sheets (or another tool--I am agnostic about the solution, so long as it requires no or very little coding).Mar 23, 2022 · In the previous section, we showed you how to use the Conditional Formatting built-in feature combined with the =COUNTIF formula. However, you can use the =UNIQUE formula directly in your Google Sheets file to find and highlight duplicates in your worksheet. 1. Open your Google Sheets and type in “=UNIQUE” into an empty cell next to your data. Highlighting duplicates is handy when you are comparing data to see where there’s a match, or going through trying to filter out double entries. We’ll be taking a look at ways Google sheets gives you for …Nov 17, 2022 · The common formula used to highlight duplicates is: =COUNTIF(range, criterion) Here is a step-by-step guide on how to use this formula in Google Sheets. Navigate to the “Format” option in the top menu and scroll down to “Conditional Formatting” as shown below. The new conditional formatting options will appear on the right-hand side ... Oct 9, 2023 · When working with data in Google Sheets, it’s common to need to identify duplicates. Follow these steps to highlight duplicates using conditional formatting and a custom formula. 1. Select the Range. First you need to select the range that you need to check for duplicates. If the range is very large you can skip this step and input it later. 2. Here’s how to identify duplicates in Excel using conditional formatting: Select the data. Go to the “ Home ” tab and click “ Conditional Formatting .”. Choose the option “ Highlight Cell Rules ” > “ Duplicate Values .”. In the prompt, choose whether to highlight unique values or duplications.Nov 29, 2022 · 1. Highlight the cell range that contains the duplicates you want to remove ( A2:B14 ). 2. Navigate to the Data menu. 3. Choose Data cleanup and select the Remove duplicates function. 5. If the data has a header row, tick the box Data has a header row in the Remove duplicates box. 6. Feb 14, 2024 · The most common way to highlight duplicates in Google Sheets is with conditional formatting. It’s really easy to do that in a single column, so I’ll cover that first. All you have to do is use a COUNTIF function to see whether a cell is duplicated. Then, apply conditional formatting based on the results. Go to Format > Conditional formatting. It will open the sidebar panel to enter the range of cells to highlight. Also, to add the above formula rule. Find “Apply to range,” and enter B2:I2, which is the range to highlight for consecutive or adjacent duplicated cells. Then select “Custom formula is” under “Format rules.”.Go to Format > Conditional formatting. It will open the sidebar panel to enter the range of cells to highlight. Also, to add the above formula rule. Find “Apply to range,” and enter B2:I2, which is the range to highlight for consecutive or adjacent duplicated cells. Then select “Custom formula is” under “Format rules.”.The formula checks whether the count of the values in cells A2 and B2 is greater than 1. If it is, the cell is formatted with the chosen style. That’s it. Other cool Google Sheets formulas: And if you get stuck somewhere while applying the GSheets formula to Highlight Duplicates, kindly let me know in the comments below. The two best ways to ...Method 1: Highlighting All The Duplicates in A Column or Row. Starting with the most basic method, we’ll be highlighting single cell duplicates in a column. This will highlight duplicates in a column, without marking the entire row. We recommend using this method when you’re simply trying to look for duplicates without needing to …Remove Duplicates offers 6 easy ways to deal with replicated data in your Google Sheets. To look for all instances of values or check for unique records on one spreadsheet, use the Find duplicate or unique cells tool. Based on the settings you select, it will highlight duplicates, copy or move them, or free cells from the values completely.In the first example, we will use type 3 duplicate highlighting, i.e., highlighting all the occurrences of duplicates. Highlight All the Occurrences of Visible Duplicates in Google Sheets. Here is the screenshot. In this, see the formula in cell B1, which I have dragged down until cell B9. =subtotal(103,A1)How to highlight text in Google Sheets. Written by Corey BustosUpdated on November 1, 2023in. Related Posts: How to highlight text and cells in Google Sheets. Highlight row based on cell values in Google Sheets. 7 ways to highlight duplicates in Google Sheets. How to automatically create a series of values in….So the formula to highlight conditional duplicates in Google Sheets is as follows. To apply, do as follows. Select Format > Conditional formatting to open the sidebar panel. Under “Single color,” enter A2:A in the field below “Apply to range.”. Select “Custom formula” below “Format rules” and insert the above formula. Select ...1 – Find duplicates in a column. To find duplicate data in a column of a Google Sheet: Highlight the column by clicking on the corresponding letter above it. Go to Format. Select Conditional …Dec 10, 2019 · In this Google Sheets tutorial, you will learn 6 ways to highlight duplicates based on single and multiple conditions. Watch till the end to get a bonus feat... Fortunately, Google Sheets can highlight the problem areas with conditional formatting. To use conditional formatting in Google Sheets, select the cells to be examined and formatted. Then, select the appropriate conditional rule. A rule is a set of instructions that tells Google Sheets when to use conditional formatting on a cell and …Yet, Sheets doesn’t include any built-in tool for highlighting duplicates. Nevertheless, you can still highlight duplicates in Google Sheets with custom formulas and a Power Tools add-on, as outlined in the methods below. How to Highlight Duplicate Column and Row Data Google Sheets, like other spreadsheet applications, has a …When you have data in a column in Google Sheets that contain duplicate values, you may want to highlight them for further analysis or deletion. A quick way t...Here’s how to highlight duplicates in Google Sheets in multiple columns –. Select the data range, then choose Format > Conditional formatting . On the Conditional format rules side panel, click Add another rule. Double-check the cell range. Ensure all the columns you wish to look for duplicates are included.By default, Google Sheets will highlight duplicate data in green. Then click Done. (Tip: If you change the fill color, choose a high-contrast color scheme, such as light yellow 3, to improve readability.) You can now review the duplicate data (highlighted) and decide whether you need to delete any redundant information. How to highlight …Step 1: Select the Cells you want to scan for duplicates. This step is easy. Using your mouse pointer, click and drag over all the cells you think contain the …Go to Format > Conditional formatting. It will open the sidebar panel to enter the range of cells to highlight. Also, to add the above formula rule. Find “Apply to range,” and enter B2:I2, which is the range to highlight for consecutive or adjacent duplicated cells. Then select “Custom formula is” under “Format rules.”.Oct 28, 2023 · Method 1: Highlight duplicates with conditional formatting (custom formula is) Highlight duplicates in a single column. Highlight duplicates found within multiple columns. Highlight duplicates found within an entire sheet. Highlight entire row when duplicate is found. Highlight duplicate rows. Jun 20, 2022 · Highlight Duplicates in Google Sheets on a Single Column. When multiple people have access to a Google Sheet and anyone can edit the data, then there is a higher probability of duplicate entries. Fortunately, you can use the Conditional Formatting feature of Google Sheets to quickly highlight duplicates. Let’s see how to do that. 5. Lọc dữ liệu trùng lặp bằng công cụ tiện ích. Bước 1: Bạn chọn Tiện ích bổ sung > Chọn Tải tiện ích bổ sung. Cách lọc dữ liệu trùng lặp bằng công cụ tiện ích. Bước 2: Bạn tìm từ khóa " remove duplicates " và chọn tiện ích …How to highlight duplicates in Google Sheets . Ariful Islam • July 14, 2023 • 2 min read . Build a full-fledged application from your Google database . Get started for free. Turn my database into a web app. Related Articles. Learn Google Sheets. Merge Cells in Google Sheets. read the article . Learn Google Sheets. How to make a Gantt …Google Sheets: How to highlight duplicates. Step 1: Open your spreadsheet in Google Sheets and select a column. Step 2: Then click on Format and go to Conditional formatting. Step 3: Under Format rules, you will have to open the drop-down list and select Custom formula is.Note: Excel contains many built-in "presets" for highlighting values with conditional formatting, including a preset to highlight duplicate values. However, if you want more flexibility, you can highlight duplicates with your own formula, as explained in this article. If you want to highlight cells that contain duplicates in a set of data, you can use a simple …From Excel's ribbon at the top, select the "Home" tab. Then, in the "Styles" section, choose Conditional Formatting > Highlight Cells Rules > Duplicate Values. You'll see a "Duplicate Values" box. Here, click the first drop-down menu and choose "Duplicate." Select the second drop-down menu and pick the formatting you want to use …To do so: Highlight the columns you want to compare. Navigate to “ Formatting” > “Conditional formatting”. Set the “F ormat cells ” menu item to “ Custom formula is”. Use absolute references for the column names and use the equals sign (=) between the first two rows of the columns you want to compare.Sep 21, 2022 · Step 1: Lookup Column E. Step 2: Search Column C and find if there are any value matches from column E. Step 3 : Highlight cell in column C and Column E if there is a Match. (it can be 1 match or it can be many, all duplicates should be highlighted) Step 4: Skip if Cell is blank. ( Do not Highlight). This help content & information General Help Center experience. Search. Clear searchHere is the example sheet for this: Example Spreadsheet. Edit: Added column finding logic, and added a button you can press to see the duplicates in the sheet. NOTE: You must be signed into a google account for the script to run. var sheet = SpreadsheetApp.getActiveSheet(); //Get the current sheet.Step 1. Select the range in which you want to find duplicates. Usually this will be a single column of data such as a list of users, products, locations, etc. To select the entire column, click on the column letter at the top of the column. For this example, we will selected the range A1:A1000 to look for duplicates in column A.Step 1: Open your Google Sheet. To begin, open the Google Sheet that contains the data you want to highlight duplicates for. If you don’t have a sheet already set up, you can create a new one by ...How to Highlight Duplicates in Multiple Rows or Columns in Google Sheets Highlighting duplicates across multiple rows or columns in Google Sheets is crucial for identifying patterns and ensuring data consistency. Google Sheets provides several methods to achieve this, and you can choose the one that best suits your needs. …Bạn cũng có thể thấy được dữ liều nào có trùng ở ô có highlight. Xóa dữ liệu trùng lặp trên Google Sheets. Google Sheets hiện đã có tính năng xóa dữ liệu trùng lặp. Bạn chỉ cần chọn cột muốn xóa dữ liệu trùng lặp > …2 Ways to Highlight Duplicates in Two Columns in Google Sheets. For our approach, Conditional Formatting gives the easiest solution to highlight two columns in Google Sheets. This feature returns the duplicates between two columns and shows them highlighted. We can access this feature from the format tab: Format > Conditional …How to highlight duplicates in Google Sheets; Excel: featured articles. Merge multiple sheets into one; Combine Excel files into one; Compare two files / worksheets; Merge Excel tables by matching column data or headers; Merge rows without losing data; Create calendar in Excel (drop-down and printable) 3 ways to remove …We are going to apply the formula to extract the distinct values. Here are the steps you need to follow to do so: Click the cell and write the starting part of the formula, which is =UNIQUE ( . Now, we need to write the parameter defining the cell range. For this example, it is the range A2:A14 . Add a bracket.Apr 22, 2023 · Step 5 – Choose the formatting style and press Done. In the formatting style Field choose whatever color or fonts you want to use for highlighting the duplicates. In our case, we’ll use the default highlighting only. Now press the Done button and all the duplicates will be highlighted as shown above. How to eliminate highlighting duplicates in google sheets conditional formatting. 0. Excel Conditional Formatting: Highlight Duplicates When More than One Row Matches. 0. Highlight and Remove Partial Duplicates in Excel. 1. How to highlight an entire row using conditional formatting. With duplicates being tested . 1. Highlight …May 27, 2021 · Removing Duplicate Data in a Google Sheet. This method comes handy when you have to remove duplicate entries from a sheet. Manually removing each of them will consume a lot more time and effort which can easily be saved. Google Sheets has a built-in feature to identify and remove the duplicate data on a spreadsheet. To highlight text within a cell in Google Sheets, follow these steps: Select the cell (s) containing the text that you want to highlight. Click the "Text color" menu on the top toolbar (The button has the letter "A" on it) Pick a color from the color palette that appears. This will be the new color of the selected text.2 ways to remove duplicates in Google Sheets; Highlight row based on cell values in Google Sheets; Using the UNIQUE function to remove duplicates in… How to highlight text and cells in Google Sheets; Using the UNIQUE and TRANSPOSE functions together in… Welcome to Spreadsheet Class! Corey Bustos. My name is …Mar 7, 2022 · 1. Open the spreadsheet. 2. Select the cells where you want to find duplicates. 3. Click on Format > Conditional Formatting. 4. Select the Single color tab on this sidebar, and confirm the range ... Here’s how you can do that in Google Sheets. Open Google Sheets and select the desired range from where you wish to remove duplicates. Now click on ‘Data’ in your toolbar at the top. Click and select ‘Data cleanup’. Now click on ‘Remove duplicates’. Check the box for ‘Select all’ and the respective columns in your range.We need to find them and highlight them. First, select the Cells from B5 to B14. Now, go to the Home tab and click on Conditional Formatting in the Style section. Then, click on Highlight Cell Rules. Afterward, select Duplicate Values. Then, a dialogue box named Duplicate Values will open up.Apr 13, 2022 · Step 1: Click the cells that you want to include within the search for duplicates. You can choose a column, specific cells, and rows. For demonstration purposes, I have highlighted the A column ... Contents. Method 1: How to remove duplicates with the Remove Duplicates tool. Method 2: How to remove duplicates with formulas. Method 3: How to …You can search multiple columns for duplicate data and highlight them automatically. Open your Google Sheets document. Ensure the data in your spreadsheet is organized by columns, and all columns have headings. Choose the column you wish to find duplicates in. Select Format, Conditional formatting, and the conditional formatting …I need to highlight any duplicate server names and then copy them to a new sheet. I have a script to highlight the cells, that works great (thank you Kurt Kaiser). But, I can't figure out how to write the duplicates (all instances) to a new sheet. Here's the snippet of the code that highlights the duplicates.Sep 21, 2022 · Step 1: Lookup Column E. Step 2: Search Column C and find if there are any value matches from column E. Step 3 : Highlight cell in column C and Column E if there is a Match. (it can be 1 match or it can be many, all duplicates should be highlighted) Step 4: Skip if Cell is blank. ( Do not Highlight). Using conditional formatting to highlight duplicate values in Google Sheets is an easy and efficient way to quickly identify any potential issues in your data. With just a few clicks, you can ensure that your spreadsheets are accurate and up-to-date. Tips and Tricks for Applying Conditional Formatting to Duplicates in Google Sheets . …Feb 20, 2024 · You can also clear the formatting without deleting the rule. Select your cell or range of cells, click Format on the top menu, and choose Clear formatting from the dropdown. 2. Highlight duplicates in multiple columns. You can also use conditional formatting to find duplicates in multiple Google spreadsheet columns. Best Practices for Data Hygiene: Duplicate Highlighting Formula. Now that you know how to use these tools, let’s explore best practices for maintaining clean and accurate data using the duplicate highlighting formula in Google Sheets. The Formula: To highlight duplicates, utilize the “COUNTIF” formula. Here’s a quick guide:To select multiple, non-contiguous ranges, hold down the CTRL key as you select each subsequent list. Next, from the Ribbon, select Home (tab) – Styles (group) – Conditional Formatting – Highlight Cells Rules – Duplicate Values. From the Duplicate Values dialog box, select whether you wish to locate the duplicate values or unique …We are going to apply the formula to extract the distinct values. Here are the steps you need to follow to do so: Click the cell and write the starting part of the formula, which is =UNIQUE ( . Now, we need to write the parameter defining the cell range. For this example, it is the range A2:A14 . Add a bracket.This ensures that you always have a recent version of your data to return to if needed. Method 1: Using Conditional Formatting👻. Conditional formatting is a feature in Google Sheets that lets you change the formatting of a cell or range of cells based on certain conditions. In the context of finding duplicates, it's useful for highlighting …google sheets highlight duplicates in two columns, select range 2. Click Format, then Select Conditional formatting. The Format option is located in the main toolbar and the Conditional formatting option is near the end of the drop-down box that will appear.We are going to apply the formula to extract the distinct values. Here are the steps you need to follow to do so: Click the cell and write the starting part of the formula, which is =UNIQUE ( . Now, we need to write the parameter defining the cell range. For this example, it is the range A2:A14 . Add a bracket.From Excel's ribbon at the top, select the "Home" tab. Then, in the "Styles" section, choose Conditional Formatting > Highlight Cells Rules > Duplicate Values. You'll see a "Duplicate Values" box. Here, click the first drop-down menu and choose "Duplicate." Select the second drop-down menu and pick the formatting you want to use …5: Bạn quay lại trang Google Sheet có dữ liệu trùng lặp > Chọn Tiện ích bổ sung > Chọn Remove Duplicates > Chọn Start để bắt đầu lọc dữ liệu trùng lặp. 6 : Bạn nhấp vào nút Select columns ( Chọn …This help content & information General Help Center experience. Search. Clear searchMethod 1: Highlighting All The Duplicates in A Column or Row. Starting with the most basic method, we’ll be highlighting single cell duplicates in a column. This will highlight duplicates in a column, without marking the entire row. We recommend using this method when you’re simply trying to look for duplicates without needing to …Highlight duplicate rows in Google Sheets. A complete carbon copy of a record can appears multiple times in the data set. This is the most common type of duplicate issue. You can use the conditional format to highlight these types of duplicates also. When comparing the entire row, we need to consider all the columns in the data …In this Google Sheets tutorial, you will learn 6 ways to highlight duplicates based on single and multiple conditions. Watch till the end to get a bonus feat...Jul 12, 2022 · Here’s a step-by-step guide: Step 1: Open your spreadsheet. Step 2: Highlight the data you want to check. Step 3: Under “Format”, select “Conditional Formatting.”. Step 4: Select “Custom formula is.”. Step 5: Enter the custom duplicate checking formula. Step 6: Click “Done” to see the results. Oct 9, 2023 · When working with data in Google Sheets, it’s common to need to identify duplicates. Follow these steps to highlight duplicates using conditional formatting and a custom formula. 1. Select the Range. First you need to select the range that you need to check for duplicates. If the range is very large you can skip this step and input it later. 2. Highlight duplicate rows in Google Sheets. A complete carbon copy of a record can appears multiple times in the data set. This is the most common type of duplicate issue. You can use the conditional format to highlight these types of duplicates also. When comparing the entire row, we need to consider all the columns in the data …Google Sheets: How to highlight duplicates. Step 1: Open your spreadsheet in Google Sheets and select a column. Step 2: Then click on Format and go to Conditional formatting. Step 3: Under Format rules, you will have to open the drop-down list and select Custom formula is.Issue(Slow performance): Use of setBackground in a loop for each cell.; Use of arrays to store duplicates. Solution: Create a output array and use setBackgrounds() instead.; Use Objects {} to store duplicates; If the above solutions are still slow, use sheets api to batch set backgroundsTo highlight duplicate values in Google Sheets is actually a little difficult. A duplicate value in Google Sheets refers to a situation where the same data or value appears more than once in a particular column or range of cells. This can be a problem if you are trying to organize your data or perform calculations on it, as it can cause …
7 ways to highlight duplicates in Google Sheets; Highlight row based on cell values in Google Sheets; 2 ways to remove duplicates in Google Sheets; How to easily clear formatting in Google Sheets; Data organizer / calculator template for building… How to highlight text and cells in Google Sheets; Welcome to Spreadsheet Class! …. Five nights at freddy's full movie
In the previous section, we showed you how to use the Conditional Formatting built-in feature combined with the =COUNTIF formula. However, you can use the =UNIQUE formula directly in your Google Sheets file to find and highlight duplicates in your worksheet. 1. Open your Google Sheets and type in “=UNIQUE” into an empty cell …Aug 14, 2021 · Open the spreadsheet you want to check for duplicates in Google Sheets. First, select the first column (A) to check with column B. You can highlight the entire column by clicking on the column letter above it. Then, click the ‘Format’ menu from the menu bar and select ‘Conditional formatting’. Explore the world of Google Sheets and get into the art of highlighting duplicates in Google Sheets.Whether you’re a spreadsheet pro or just a newbie in the data-driven field, understanding how to spot and find duplicate values can enhance your productivity and accuracy. In this journey of learning different features of Google …Sep 20, 2023 · Here’s how to highlight duplicates in Google Sheets using the UNIQUE Function –. Simple syntax is used: =UNIQUE (Range) Let’s use the same dataset for this function’s application to identify distinct values. Choose a blank cell. Enter the data range you want to check for unique data with =UNIQUE. February 9, 2024 by Matthew Burleigh. Highlighting duplicates in Google Sheets can be a handy trick to quickly identify and manage repeated information. Whether you’re … 2. Click Format, then Select Conditional formatting. The Format option is located in the main toolbar and the Conditional formatting option is near the end of the drop-down box that will appear. google sheets highlight duplicates in two columns, click format, select conditional formatting. Highlight duplicate rows in Google Sheets. A complete carbon copy of a record can appears multiple times in the data set. This is the most common type of duplicate issue. You can use the conditional format to highlight these types of duplicates also. When comparing the entire row, we need to consider all the columns in the data …I need to highlight any duplicate server names and then copy them to a new sheet. I have a script to highlight the cells, that works great (thank you Kurt Kaiser). But, I can't figure out how to write the duplicates (all instances) to a new sheet. Here's the snippet of the code that highlights the duplicates.Highlight Duplicate Values within a Column in Google Sheets. To highlight the duplicate values within a single column you have to specify the COUNTIF formula accordingly …This will highlight the Non Duplicate Values. Press Add Command button to add another Condition. Condition 2>>Formula Is>>. =COUNTIF (A:A,A1)>1. Then Click the Format command button and choose your desired Font and. Pattern colour. This will highlight the Duplicate Values. Click Ok…. Hope it’s clear to you.Highlight Duplicate Values within a Column in Google Sheets. To highlight the duplicate values within a single column you have to specify the COUNTIF formula accordingly …Issue(Slow performance): Use of setBackground in a loop for each cell.; Use of arrays to store duplicates. Solution: Create a output array and use setBackgrounds() instead.; Use Objects {} to store duplicates; If the above solutions are still slow, use sheets api to batch set backgrounds7 ways to highlight duplicates in Google Sheets; 2 ways to remove duplicates in Google Sheets; Using the UNIQUE and TRANSPOSE functions together in… Highlight row based on cell values ….