Remove Duplicates

Remove duplicate rows from Excel or CSV.

What Remove Duplicates is for

Remove duplicate rows from Excel or CSV. This page is designed for people who need to remove duplicate rows from a spreadsheet or CSV. Use the controls above to complete the task and review the result before using it elsewhere.

How to use Remove Duplicates

  1. Prepare the correct input for this task and use a small sample first.
  2. Upload the data, choose which columns determine a duplicate if supported, process, and verify the remaining rows.
  3. Review the preview or output, make any needed adjustments, and save or download the result only after it looks correct.

Example to try

Use a small table with one repeated row and confirm the intended record is retained.

Limitations and quality checks

Two rows may look alike but differ in hidden whitespace or formatting; back up the source before deleting rows. Supported formats, processing limits, and output quality depend on the controls and services available on this page. If an operation fails, try a small supported sample and read any error message rather than assuming the file was processed.

Privacy and safe use

Before using private, confidential, or business-sensitive material, review the processing note shown by this tool and the ArfaAI Privacy Policy. Some tools may use browser features, external libraries, or third-party services; do not assume every workflow is local-only. Keep an original copy of important files until you have verified the result.

Frequently asked questions

How can I check the result?

Use the example above with a small input, compare the result with the original, and reopen any downloaded file in a compatible application.

What if the tool does not work?

Confirm the input type, required fields, browser permissions, and file size. If an external service is used, it may also be temporarily unavailable or rate-limited.

Can I use the result immediately?

Review it first. Check accuracy, formatting, file integrity, and any rights or privacy obligations that apply to your content.