Welcome QuickOffice Mobile Suite for Android. QuickOffice was among the first creators of a Microsoft Office solution for Android. Now with 3 years under its belt it continues to lead the way in opening, editing, and creating new Microsoft Office files. Quickoffice allows the opening, editing, and creating of Microsoft Word, Excel, and Powerpoint files. It also supports opening and reading pdf files.I love all the features such as formating font as shown in the picture to the left. It handles new and old versions of office files from Microsoft 2003 to 2010.
There are several solutions in the Market right now and the very best of them cost one way or the other. For the low cost of $4.99 I think this one is a bargain.
Source : http://www.androidsocialmedia.com/apps/android-word-excel-powerpoint-and-google-docs-by-quickoffice