Core comparison
Check the two workbook versions side by side and review supported changes by sheet and location.
Workbook comparison
Compare two Excel files online
WorkbookDiff is built for the simple but annoying job of checking an original and updated `.xlsx` workbook. It separates ordinary value edits from formula-expression changes and surfaces worksheet, hidden-row, hidden-column, and used-range differences.
What the page covers
Use this page when the task is broad workbook comparison
Built for real review work
The workflow is designed to help someone confirm what changed, not just stare at a visual diff.
Local processing
The selected files are compared in the browser, which makes this page useful for privacy-led searches.
Clear limits
This page stays honest about `.xlsx` support, 20 MB limits, and unsupported workbook features.
If your query is really about formulas, privacy, or exporting a report, jump to the more specific pages below. That keeps the landing page from becoming keyword soup.