Excel Password Protector

Encrypt Excel spreadsheets (.xlsx, .xls) with AES-256 password protection.

  • Free, no sign-up
  • No watermark
  • Files deleted automatically
Supported Formats
XLSX XLS

or drop a file here · paste with Ctrl+V

XLSX, XLS

Up to 1 GB

Suggested tools

Excel Converter

Convert spreadsheets between XLSX, XLS, CSV, and PDF.

XLSXXLSCSVPDF
Open Tool

Document Converter

Convert PDFs, Word files, spreadsheets, and presentations between formats.

PDFDOCXXLSXPPTXTXT
Open Tool

PowerPoint Converter

Turn PowerPoint slideshows into PDF documents.

PPTXPPTPDF
Open Tool

JSON to CSV

Convert a JSON array of objects into a CSV spreadsheet.

JSONCSV
Open Tool

CSV to JSON

Convert a CSV spreadsheet into a JSON array of objects.

CSVJSON
Open Tool

TXT to PDF

Convert a plain-text file into a clean, paginated PDF.

TXTPDF
Open Tool

About Excel Password Protector

Excel Password Protect encrypts an Excel workbook (.xlsx) so that it cannot be opened without the password you set. Use it before emailing salary sheets, client data or financial models.

This is real file encryption, the same kind Excel uses for "Encrypt with Password", not just sheet protection. Excel, LibreOffice and other modern spreadsheet apps will ask for the password when the file is opened.

How to use Excel Password Protector

  1. Upload your .xlsx workbook.
  2. Type a strong password and keep a copy of it somewhere safe.
  3. Press Protect and download the encrypted workbook.

Key features

  • Encrypts the whole workbook with a password
  • Opens in Excel and other modern spreadsheet apps
  • Uses Office's standard file encryption
  • Your file and password are not stored

When to use Excel Password Protector

  • Emailing salary sheets, payroll or employee data to HR or an accountant.
  • Sharing a client list or price workbook with a partner securely.
  • Storing financial models or budgets on a shared drive.

Tips and common problems

  • Use a long password (12+ characters) — short passwords on Excel files can be guessed by cracking tools.
  • Send the password separately from the file, for example by phone or SMS.
  • Keep an unprotected copy in a safe place in case the password is lost.

Frequently asked questions

There is no way to recover it — not even for us. Store the password in a password manager before you share the file.

Guides

  • PDF Password Protection Explained — The two kinds of PDF passwords, what AES-256 encryption really protects, why "no printing" restrictions are weak, and how to protect and unlock PDFs safely.