Excel Data Validation: Preventing Duplication in User Sheets
Excel is a powerful tool that allows users to manage and analyze large amounts of data. One of the most useful features of Excel is data validation, which ensures that the data entered into a spreadsheet meets certain criteria. This article will focus on how to use data validation to prevent duplication in user sheets. 1. What is Data Validation? Data validation is a feature in Excel that allows you to define restrictions on what data can or cannot be entered into a cell. You can configure data validation to prevent users from entering invalid data or data that doesn't conform to specific rules. 2. Preventing Duplication with Data Validation One common use of data validation is to prevent duplicate entries in a column. This is particularly useful when you're dealing with large datasets and need to ensure that each entry is unique. Here's how you can set up data validation to prevent duplicates: Step 1: Select the Range First, select the range of c...
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