These days one of the most import things you will need is the ability to view and even edit documents sent to you in Microsoft Word or Microsoft Excel format. I know when I got my HTC Evo, all that I got was a very limited program (DocToGo) that would allow me to view files, but not actually do any editing. If I wanted editing features, I would need to pay to buy the full version. For various reasons, up to now, I have only kept the limited viewer, never bothering to do the upgrade.
Things changed today, as I discovered that the Amazon Appstore Free App of the day is Office Suite 5 Professional. Here is information on the app, from the (LINK) Amazon (http://www NULL.amazon NULL.com/gp/product/B0051UP5NQ/180-5621455-7084817?ie=UTF8&ref=mas_faad) page

Product Description
Just in case you need to bring the office home with you, OfficeSuite Pro is a complete feature-rich mobile office. When you can’t get it done between nine to five, OfficeSuite Pro makes your job as efficient and painless as possible.
Full-Featured Office
This office productivity suite has everything you need from mobile office software. With OfficeSuite Pro, access tools for word processing, developing spreadsheets, delivering presentations, and browsing PowerPoint and PDF files. Create, view, and edit Microsoft Word and Excel files.
Google Docs Integration
The software features the most commonly used desktop document formats and includes a File Browse. The integration with Google Docs allows you to access your remotely stored documents.
Compatibility
The program supports Microsoft Office 97 to 2010 text documents – DOC and DOCX (open , edit, and save), Microsoft Office 97 to 2010 spreadsheets – XLS and XLSX (open , edit, and save), opening PPT, PPTX, PPS, and PPSX presentations, PDF files viewing, and integration with Google Docs
I have been using the app this morning (I know not a long test period), and found overall that it works well both viewing and editing Word and Excel, and also works well
viewing a PowerPoint presentation with the app. The only thing I have noticed at issue (and I see it listed by a few people in the comments area) is that in Excel when using formulas in a cell, that the cell didn’t always show properly.
The Office Suite 5 Professional app is normally valued at $14.99, can be downloaded for free directly from your phone if you have the Amazon App Store installed, or by visiting the (LINK) Amazon (http://www NULL.amazon NULL.com/mobile-apps/b?ie=UTF8&node=2350149011) page**.
**Unfortunately the Amazon App Store is only available in the U.S.