Local by design
The selected files are read in the browser instead of being handed to a separate upload workflow.
Privacy-first search
Compare Excel files without uploading them
Some people do not want a cloud workflow at all. This page answers that intent directly: the workbook comparison runs in the browser, and the selected files stay local during the comparison workflow.
What the page promises
Show the privacy boundary before the user starts the task
Useful for sensitive sheets
That makes the page relevant for internal budgets, operational checks, and private client workbooks.
Still a real diff tool
Privacy is the hook, but the output still has to be a useful workbook comparison result.
Honest limits
This does not mean every Excel format is supported. It is still a focused `.xlsx` comparison tool.
If the person only wants a CSV evidence trail, the export page is usually the better next click.