University Systems help centre

Encrypt files using Microsoft Excel in Mac OS X

  1. With your document open, select the File tab and from the drop-down menu, click passphrases...
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  2. From the "File passphrases" dialogue box, enter your desired passphrase in the "passphrase to open" field.  It is recommended that you use a strong password or passphrase.  Once finished, click OK.
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  3. You are now prompted to confirm your passphrase by reentering it.  Once finished, click OK.Encrypt Excel Mac 3
  4. As the file is now encrypted, the passphrase will be required to open it.