This article describes how to remove duplicate rows in Excel using C#. It has the details to set the development environment, a list of steps to write the application, and a running sample code to eliminate duplicate rows in Excel using C#. You will use various methods to perform this task with the help of different arguments as per the requirement.

Steps to Delete Duplicate Lines in Excel using C#

1. Establish the environment to use Aspose.Cells for .NET to eliminate duplicate rows
2. Load the workbook object with the source Excel file for deleting repeated lines
3. Create a set of column IDs to use as a reference for deleting the duplicate rows
4. Call the RemoveDuplicates() method with cells range, flag for headers, and columns list
5. Remove duplicate rows within a selected range
6. Remove all duplicate rows from the entire sheet
7. Save the output

The above steps summarize the process to delete duplicate records in Excel using C#. Commence the process by loading the Excel file and defining the list of individual columns whose values you want to compare while removing the duplicated rows. Call different overloaded methods for RemoveDuplicates() to remove the repeated rows and save the output file.

Code to Delete Repeated Rows in Excel using C#

This sample code demonstrates how to delete the duplicate records in Excel using C#. You can customize the process of deleting the duplicate rows by setting the range of cells, setting the flag to handle the first row as header, and a list of columns whose data you want to use for duplication criteria. You may remove duplicate rows from the same sheet in different regions or remove all the related records from a selected sheet.

This article has taught us to delete duplicate entries in Excel. To group rows in an Excel file, refer to the article on Group rows and columns in Excel using C#.