QuestAceLearn · Practice · GrowExplore tools
← All Free ToolsExcel File Comparator
QUESTACE · FREE ONLINE TOOL

Excel File Comparator

Compare two Excel or CSV files to identify added, deleted, modified and unchanged records using a matching column.

WORKSPACE

Use this tool

Enter your details below and get your result in seconds.

✓ Free · No login
CSV or XLSX only. Maximum 20 MB per file and 100,000 data rows. The first worksheet and first row are used. Type the exact column heading present in both files. Values in this column must be unique and non-empty in each file.
How it works
  • Added: a key appears only in the updated file.
  • Deleted: a key appears only in the original file.
  • Modified: the key exists in both files, but one or more values differ.
  • Unchanged: the key and all compared values match.

The report includes original and updated values plus the names of changed columns. Files are processed temporarily; avoid uploading sensitive records unless you are authorized to do so.

Privacy reminder — avoid uploading confidential or sensitive documents. Download your result and keep a copy of your original file.