How to create an audit trail by comparing weekly excel export versions
- Step 1Save this week's and last week's Excel exports — File A = last week; File B = this week.
- Step 2Run the comparison — Upload both files. The diff identifies every changed, added, and removed cell.
- Step 3Distribute the change log with the weekly report — Attach the colour-coded XLSX or text summary to your operational report for the review team.
Frequently asked questions
How should I version-name my weekly export files for easy comparison?+
Include the date in the filename: report_2024-01-12.xlsx and report_2024-01-19.xlsx. This makes it clear which is A (older) and which is B (newer).
Does the tool detect new rows added this week?+
Yes. Rows in File B that don't exist in File A (by position) are shown as added cells.
Can I automate the weekly comparison?+
The browser tool is manual. A scripted version using ExcelJS for automated weekly diff runs is on the Developer tier roadmap.
Privacy first
Every JAD Excel tool runs entirely in your browser using SheetJS and ExcelJS. Your spreadsheets, formulas, and data never leave your device — verified by zero outbound network requests during processing.