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Google Sheets

Delete Duplicates in Google Sheets: A Step-by-Step Guide

Eliminating duplicate values from your data is a key step in maintaining accuracy and clarity in Google Sheets. In this step-by-step guide, we'll explore the process of efficiently deleting duplicates, ensuring your dataset remains clean and streamlined.

Recognizing the Importance of Deleting Duplicates

Removing duplicate entries improves data integrity and facilitates better analysis by eliminating redundant information. Mastering the techniques for deleting duplicates in Google Sheets is crucial for maintaining a precise and efficient spreadsheet.

Method 1: Identifying Duplicate Rows

Learn the foundational method of identifying duplicate rows in Google Sheets. Understand how to visually inspect your dataset or use formulas to locate rows containing duplicate values.

Method 2: Selecting Duplicate Rows for Deletion

Explore the process of selecting the duplicate rows you want to delete. Learn how to highlight the rows containing duplicate values or use selection techniques to target specific ranges.

Method 3: Accessing the "Remove duplicates" Option

Dive into accessing the "Remove duplicates" option in Google Sheets. Learn how to navigate to "Data" > "Data cleanup" > "Remove duplicates" to open the Remove duplicates dialog box.

Method 4: Choosing Columns for Duplicate Check

Learn how to choose the columns for duplicate checking. Understand how to specify the columns based on which you want to identify and remove duplicate values.

Method 5: Reviewing and Confirming Deletion

Learn how to review the selected rows before confirming deletion. Understand how to preview the values that will be kept and remove any unwanted duplicates before finalizing the process.

Method 6: Deleting Duplicates with Google Apps Script

Explore advanced duplicate deletion functionalities using Google Apps Script for customized automation. Learn how to create scripts that automatically identify and delete duplicates based on specific criteria, providing a powerful tool for dynamic data cleaning.


In conclusion, deleting duplicates in Google Sheets is a critical step for maintaining clean and accurate data. Whether you're identifying duplicate rows, selecting rows for deletion, accessing the "Remove duplicates" option, reviewing changes, or exploring automation with Google Apps Script, the methods outlined in this guide provide a comprehensive toolkit for duplicate deletion. By incorporating these techniques into your spreadsheet workflow, you'll enhance your ability to efficiently clean and manage data in Google Sheets.