MicrosoftExcelforMac is a widely used spreadsheet program that is part of the Microsoft Office suite. It allows you to organize, analyze, manipulate, and visualize data. Encrypt files using Microsoft Excel in Mac OS X. With your document open, select the File tab and from the drop-down menu, click passphrases. Encrypt Excel.
![Microsfot Excel For Mac Microsfot Excel For Mac](http://www.saudimac.com/wp-content/uploads/2010/04/microsoft-excel-mac-2011-arabic-450x268.jpg)
The following steps will demonstrate how to to sign out of Office 365 on Mac OS then sign back in. Open Microsoft Word. Click on the Word menu next to the Apple logo.
Click 'Sign Out' and confirm sign out on next pop up window. The following steps will be used to sign back into office 365.
Open Microsoft Word. Click on 'Sign In' in the upper left hand corner of the program. After clicking on 'Sign In' a window will pop up asking for your email.
![Microsoft Microsoft](/uploads/1/2/5/3/125348054/907236787.png)
Type in your Kansas State University email address (make sure to include @ksu.edu). Click 'Next'. A window will appear asking you to sign into your Kansas State account.
Type your eID and password in then click 'Sign in'.