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Lock Excel files Online

Secure files by opening and modifying Excel files with a locked password. Enable the read-only feature for added protection.

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Aspose.Cells for .NET Aspose.Cells Lock Excel

Easily protect your Excel files with our encryption and access control features. Protect data with passwords and read-only modes for increased confidentiality.

  • Protect XLS, XLSX, XLSM, XLTX, XLTM, XLSB, ODS, NUMBERS
  • Encrypt Excel file with password.
  • A password is required to open or modify a workbook.
  • Lock the workbook to make it read-only.

How to Lock Excel files

  • Upload your Excel files to lock.
  • Type the lock password.
  • Press the "LOCK" button.
  • Download the encrypted file now, or email the download link.
Note that file will be deleted from our servers after 24 hours and download links will stop working after this time period.
Fast and Easy Lock

Fast and Easy Lock

Upload your files, enter your password, and click the "LOCK" button. Wait a few moments and you will have immediate access to your protected files.

Lock from Anywhere

Lock from Anywhere

It works on all platforms including Windows, Mac, Android and iOS. all files are processed on our servers. No plug-ins or software to install.

Lock Quality

Lock Quality

Powered by Aspose.Cells . All files are processed using Aspose APIs, which are being used by many Fortune 100 companies across 114 countries.

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