Video: Restrict changes to files

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Use read-only protection and passwords to prevent other people from opening or modifying documents.

Make documents read-only

  1. Open the document that you want to make read-only

  2. Select File > Info.

  3. Select Protect Document > Mark as Final.

    Note: In Excel, select Protect Workbook. In PowerPoint, select Protect Presentation.

  4. Select OK.

  5. Browse to the folder where you want to save the file, enter a file name, and then select Save.

    When you open the file, a Marked as Final message appears at the top of the document. If you select Edit Anyway, the document is no longer read-only.

Encrypt documents with a password

  1. Open the document that you want to password protect.

  2. Select File > Info.

  3. Select Protect Document > Encrypt with Password.

    Note: In Excel, select Protect Workbook. In PowerPoint, select Protect Presentation.

  4. Enter a password, and select OK.

  5. Re-enter the password, and select OK.

Remove password protection

  1. Open the password-protected document.

  2. Select File > Info.

  3. Select Protect Document > Encrypt with Password.

    Note: In Excel, select Protect Workbook. In PowerPoint, select Protect Presentation.

  4. Delete the password, and then select OK.

Want more?

Add or remove protection in your document, workbook, or presentation

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