Add AES-256 password protection to Microsoft Excel spreadsheets. Works with XLSX, XLS, CSV, and ODS files. Zero uploads.
No Upload
100% Private
Instant
Free Forever
Password Protect Excel Spreadsheet
Encrypt XLSX, XLS, CSV, ODS files with AES-256
Select Spreadsheet
Drop Excel, CSV, or spreadsheet file
XLSX, XLS, CSV, ODS, TSV supported
Password
Enter a password
Output is an AES-256 encrypted .vault container. Decrypt at encryptfiles.online/decrypt. For a native Excel password, use Excel: Review → Protect Workbook.
Encrypting...
FAQ
Frequently Asked Questions
The .vault container requires decryption at encryptfiles.online/decrypt first. For a native Excel password compatible with Microsoft Excel, use Excel's built-in: File > Info > Protect Workbook > Encrypt with Password.
XLSX, XLS, CSV, ODS, and TSV files are all accepted and encrypted identically.
Yes. CSV files are treated as binary data and encrypted with full AES-256-GCM protection.