Password Protect XLSM

Protect your XLSM files with free online password protect app!

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We have already processed 17,379 files with the total size of 35,544 MB

 

XLSM is a spreadsheet file created by Microsoft Excel that may contain macros - a program to do routine tasks. In case your spreadsheet contains sensitive information you can limit access to your XLSM spreadsheet by setting a password.

Password Protect is a free secure online web application that enables you to protect XLSM spreadsheets. You can easily add a password to XLSM file within a couple of clicks and download a protected file.

To password protect XLSM spreadsheets we're using AES encryption algorithm with key length 128 bits. This encryption method provides high protection level against brute-force attacks that are used by attackers to decrypt a protected file.

To secure XLSM spreadsheets using Password Protect application upload your file, type the password, click protect button, and download the protected file. The download link will be available for 24 hours. While we automatically remove your files from our servers we also enable you to remove the files manually. After you removed files manually the download link won’t work anymore.

How to password protect XLSM file

Submit your file

Click inside the file drop area to upload a XLSM file or drag & drop a XLSM file.

Type the password

Enter the password that you want to use to protect the file.

Protect file

Click "Protect" button and wait until process is completed.

Get Result

Click on "Download" button to get protected file.

FAQ

How do I password protect XLSM file for free?

How do I password protect XLSM file in my browser?

Can I password protect a XLSM without Microsoft Excel?

Can I password protect a file on Linux, Mac OS, or Android?