Compare Excel files

Compare two spreadsheets using key columns. Review added, removed, and changed rows, then download the results as Excel.

Output XLSX

Choose filesProcessed on your device

Choose original spreadsheetClick or drop files hereXLSX, XLS, CSV · 30 MB per fileChoose updated spreadsheetClick or drop files hereXLSX, XLS, CSV · 30 MB per file

Original workbook sheetUpdated workbook sheet

Columns that identify each row Choose a unique identifier, such as a member ID. You can select several columns.

Choose a file to see its columns.

Ignore surrounding spacesIgnore hyphensIgnore letter case

Example

If the original has A001, A002, A003 and the update has A001, A003, A004, A004 is added and A002 is removed. Changed values for A003 appear alongside their previous values.

Supported features and limits

Both sheets must have the same headers, but column order may differ.
Duplicate or empty keys stop comparison. Add another key column or clean the rows.
Displayed values are compared as text. Formulas, styles, colors, and comments are not compared; formulas are not recalculated.

Frequently asked questions

Will my original files change?

No. The tool creates new result files. Review the downloaded results before using them.

Are my files uploaded?

Selected files are processed in your browser. File contents and filenames are not sent to a server. Aggregate tool-use counts are collected as described in the privacy notice.