The latest versions of Office, the software package that includes Word and Excel, enable users to share files and collaborate.

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We've some really unfortunate news to share with Lumia 810 owners who'd purchased the handset on T-Mobile's word that a software update would enable LTE support.

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However, we found ourselves most impressed by the customized versions of ThinkFree Office Mobile, which enable dual-screen viewing and editing of Word, PowerPoint, and Excel documents, plus PDF viewing to boot.

ENGADGET: Prototype dual-screened 2-in-1 Android smartpad from Imerj preview