University Systems help centre
Encrypt files using Microsoft Excel in Mac OS X
- With your document open, select the Save as button.
- Click on Options.
- Enter your desired passphrase in the Password to open field.
It is recommended that you choose a strong passphrase.
Once finished, click OK. - You are now prompted to confirm your passphrase by reentering it.
Once finished, click OK. - Save the file by clicking Save. As the file is now encrypted, the passphrase will be required to open it.