Users can pick up the application as a free download via a manual software update, or by hooking up their handset to the Nokia Suite on PC.
"Until now you could only get the full Microsoft Office Mobile app on Windows Phone, but not anymore," read a blog post by the Finish phone maker.
"We are happy to announce that from today, the Nokia 701, Nokia 700, Nokia 603, Nokia E7, Nokia X7, Nokia C7, Nokia Oro, and Nokia C6-01 will also get this much sought-after collection of productivity apps."
The mobile version of MS Office, which includes Word, Excel and Powerpoint, was previously exclusive to Windows Phone handsets, such as the Lumia 610, Lumia 800 and Lumia 900.
Symbian was the world's leading mobile operating system until it was eclipsed by Google's Android in November last year. Recent reports suggest that Nokia is gradually ushering out the platform following its adoption of the Windows Phone OS.
Microsoft Office Mobile will also be available for the Nokia N8, E6 and 500, though specific release dates are yet to be confirmed.
> Nokia Lumia 900 available for pre-order in UK