Excel Locker

Lock your spreadsheets with a password

Encrypt Excel and CSV files so only people with the password can open them. Share them safely by email or chat.

AES-256 encryption Runs in your browser Whole file protected

Choose spreadsheets

XLSX, XLSM, XLSB, XLS, CSV, TSV or ODS. Up to 100 MB each.

Drop files here or browseYou can add several at once.

    Set a password

    You will need this password to unlock the files later.

    Passwords cannot be recovered. If you forget it, the locked files cannot be opened by anyone.

    This protects the entire file, including every sheet, formula and hidden data. The locked .prot file cannot be opened in Excel until it is unlocked.

    Lock and download

    Your files are encrypted on your device and never uploaded. Locked .prot files open only with the matching unlocker tool and password.