Documents To Go is a workhorse app on my Android tablet. I use it for note taking during meetings as well as reviewing text documents and spreadsheets. It can open and edit Microsoft Word, Excel and PowerPoint files without conversion and is faster and more flexible than the free Google Docs for Android app.
Microsoft Word documents opened in Documents To Go retain the visual formatting that I commonly work with, including bold, italics, underline, font color, alignment, bulleted and numbered lists, tables, bookmarks, comments, footnotes, and endnotes.
If you work regularly with spreadsheets, you'll be happy to know that Documents To Go lets you navigate in them as you would on a desktop. It's not limited to working with just the cells in a specified row, like the Google Docs for Android app is.
The apps spreadsheet story gets even better as you find it supports most of the formatting you expect in a desktop app as well as 111 functions. It provides a full list of supported functions. You can see the first few in the screenshot below.
Documents To Go even lets you work with PowerPoint slide decks. Its ability to edit these decks is much more limited than its handling of text documents and spreadsheets. However, it's still better than Google Docs for Android, which doesn't work with Google's own cloud slideshow feature.
The limited but welcome slide-editing tools are Edit Slide text, Delete Slide, Slide Sorter. This should be enough to perform minor presentation tweaking.
You are not limited to storing a draft or completed document to just local storage or Google Drive. Documents To Go lets you share documents in just about every way possible, including Bluetooth file transfer, cloud storage services such as Dropbox, email, and Evernote.
Combine Documents To Go with a Bluetooth keyboard (below) and you can get office work done anywhere.
Name: Documents To Go
Price: $14.99 (Google Play or Amazon AppStore) The full version of Documents To Go for Android lets you open and edit Microsoft Word, Excel, and PowerPoint files without conversion on your Android tablet or phone. It costs $14.99, but it's faster and more flexible than the free Google Docs for Android app.
View and edit Microsoft Word, Excel, and PowerPoint documents on an Android phone or tablet.
Work with files stored either in Google Drive (Docs) or on the device.
Fast access to locally stored files.
Spreadsheet editing mode is similar to desktop application's.
$14.99 price is half the cost of the iOS docs solution of Apple Pages, Sheets, and Keynote ($9.99 each).
Integrated file browser cannot see add-in SD cards.