Is Open Excel safe?

Clean risk

View and edit Excel spreadsheets directly in Chrome without Microsoft Excel.

This extension opens .xlsx and .xls files in the browser, supports multi-sheet viewing, cell editing, formulas, basic formatting, sorting, filtering, local saving, export, and printing. Signed-in users can use optional AI tools to audit, clean, rewrite, generate formulas, or ask questions about spreadsheet content, with suggested changes reviewed before applying. It can also optionally send a file to the user’s Google Drive to open it in Google Sheets.

0Risk
Who publishes it

ValmisLab - 1 other listing from the same operator, none carrying a finding

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
ValmisLab
Registered address
ASUNDUSE, TN 4-12,, TALLINN, Harjumaa 11416, EE
Registered contact
Aleksandr Heinlaid

Same store account

1 other listing published from this account, 2k+ users between them, none of them carrying a finding.

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

Where it sends data

Destinations our analysis observed Open Excel contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • Google Drivewidely used

    Open Excel sends data to Google Drive. Named as a recipient by 88 other extensions we have analysed.

  • Google Sheets

    Open Excel sends data to Google Sheets. Named as a recipient by 21 other extensions we have analysed.

Updated 15 October 2026iocnoabndkjippckmjbglgdecdldcnjb