There are now three principal apps for importing, editing and exporting MS Office files (Word & Excel): Documents to Go, QuickOffice, and Office2 HD. I have purchased Office2 HD and I am disappointed with its capabilities. It cannot handle large tables in a Word document; cannot handle headers and footers, plus other lesser faults which added up make it largely an unreliable tool for other than plain and simple documents. (I have not heavily tested the Excel capabilities.) What is our collective experience with these apps? Rather than continue to purchase inadequate apps, perhaps we could collect our individual testing results here so that we can all make a better decision on which one to use. Note that the intent here is to not include the Apple apps because they do not provide export compatibility with MS Office for exchanging files.