![]() Let’s look at the Python way of handling duplicate data in excel. Our script should be capable of handling such duplicate data and remove per our requirements such as remove all duplicates, remove all but the last duplicate, remove all but first duplicate. If that excel contains duplicate values, we might not want to use Excel functionalities for it. Suppose you are working in excel using Python language. We have the following data after removing duplicates from this. Let’s click on Remove Duplicates and select all columns.Ĭlick ok, and it removes the duplicate values 3 duplicate values and retains 5 unique values. This option checks duplicate values and retains the FIRST unique value and removes other values. In Microsoft Excel, we use the Remove Duplicates button from the Data menu. We want to get rid of duplicate values in this sheet. Suppose we have the following data in an excel sheet. In this article, we will look at removing duplicate data from excel using the Python.Ī quick recap of removing duplicate rows in Microsoft Excel ![]() You can go through various use cases of Python on SQLShack. Python is an interesting high-level programming language. Removing these spaces can help the Remove Duplicates tool to better detect the duplicate values you want to remove.In the article, Python scripts to format data in Microsoft Excel, we used Python scripts for creating an excel and do various data formatting. If your duplicate values have extra spaces in their cells, those spaces will also cause the Remove Duplicates tool to consider them to be unique values. Look for extra spaces in your values' cells. So be sure to format all of your number values the same way before running the tool again. For the Remove Duplicates tool, even though 5 and 5.00 and $5 all have the same numerical value, they are still unique (not duplicate) values because they are formatted differently. The Remove Duplicates tool will not overlook formatting issues and will consider formatting differences as indicators that two duplicate values are actually unique. ![]() The Conditional Formatting tool will overlook the formatting issues as long as the number values are the same. Just because the Conditional Formatting tool was able to correctly identify and highlight the duplicate values, that doesn't mean the Remove Duplicates tool will do the same. The Remove Duplicates tool doesn't work on numbers written in different formats. Make sure all values are formatted the same. If you're running into this issue, here are a couple of possible fixes you may want to consider: This is often because Excel's Remove Duplicates tool may consider two duplicate values to actually be unique values instead, usually because of some underlying difference in formatting or another not-so-visible-to-us difference. Sometimes, Excel doesn't remove all of the duplicates that are visible to us in a spreadsheet. Screenshot Troubleshooting: What if Excel doesn't remove all the duplicates? If that's the case, scroll to the next section. It may also say that it couldn't find any duplicate values to remove. When it's done, a dialog box will pop up notifying you how many duplicates were removed and how many unique values were left alone. Uncheck the ones you'd like left alone.Įxcel will then scan the selected columns for duplicates and remove them. Step 4: In the Remove Duplicates dialog box that appears, and in the Columns section, check any boxes next to the spreadsheet columns where you'd like the duplicates to be deleted. (It looks like three blue and white cells with a red X.) Step 3: In the Data Tools section, click on the Remove Duplicates button. Then navigate to the Data Tools section of the Data tab menu. ![]() Step 2: Click on the Data tab on the Ribbon Menu at the top of the screen. Step 1: Highlight the group of cells that contains the duplicate values you'd like to delete. Note: Removing duplicates in Excel usually involves permanently deleting them, so you may want to make another copy of the original version of this data before proceeding with removing the duplicates. Now that you know which values in your spreadsheets are duplicates, you can remove them. You should now be able to easily see which values in your spreadsheet are duplicates. All of the duplicates from the selected cells should have been detected and marked with your chosen color formatting. In the dialog box that appears, click on the drop-down menu after the phrase Values With and choose your desired color formatting for the cells that are deemed to be duplicates. How to remove a login password on Windows 11 ![]()
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