What version of Office am I using?

You know you have Microsoft Office installed. Good beginning! Here's how to find things like which version, which service pack (SP), and which bit version (32- or 64-bit) you have installed.

Office 2013

Office 2013 uses the File tab and the Microsoft Office Backstage view, what you see after you click File. Here's what you see in Word 2013.

1. Choose File > Account.
2. Here's where you can see the information.
   
   • To see the version number, look under Product Information.
   • To see if Office is installed using a subscription, look under Product Information.
   • To see if you have 32-bit or 64-bit Office installed, choose About Word.

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Office 365

Office 365 uses the File tab and the Microsoft Office Backstage view, what you see after you click File. Here's what you see in Word.

1. Choose File > Account.
2. Here's where you can see the information.
   
   • To see the version number, look under Office Updates.
   • To see if Office is installed using a subscription, look under Product Information. For Office 365, you should see Subscription Product.
   • To see if you have 32-bit or 64-bit Office installed, choose About Word.

Tip   Choose Update Options to see how you can install updates.
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Office for Mac 2011

Here's what you see in Word for Mac 2011.

• To see the version, choose the Word menu > About Word.

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Office 2013 RT

On the Microsoft Surface RT, there’s only one version of Office that’s designed to run on the tablet’s ARM processor, Office 2013 RT. Here's the version information in Word RT.

1. Choose File > Account.
2. Under Product Information, find the version.

Note    To learn about licensing, tap About Word.
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Office 2010

Office 2010 introduces the File tab and the Microsoft Office Backstage view, what you see after you click File. Here's what you see in Word 2010.

1. Choose File > Help.
2. Here's where you can see the information.
   
   • To see the version, look under Product Activated.
   • To see if you have 32-bit or 64-bit Office installed, look under About Microsoft Word.
   • To see what service pack you have installed or to see the licensing information, choose Additional Version and Copyright Information.

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Office 2007

Office 2007 introduced tabs and the Microsoft Office Button . Here's what you see in Word 2007.

1. Choose the Microsoft Office Button > Word Options.
2. In the Word Options dialog box, click Resources to find the version and the Service Pack (SP).
   Note    To learn about licensing, in Resources, click About. On the About dialog box, see This product is licensed to.

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Office 2003

  Support has ended for Office 2003.
Office 2003 has text-based menus on the gray bar: File, Edit, View, Insert, Format, Tools, Table, Window, and Help. Here's what you see in Word 2003.

1. Choose Help > About.
2. In the About dialog box, find the version and the Service Pack (SP).
   Note   To learn about licensing is the This product is licensed to field.

This is straight from Office Help