You can edit MS Word documents on the N810, if you "Save As", and Edit your MS word documents as an .HTML, instead of as a .doc file.

You can also edit N810 files on your PC, in MS Word (via USB cable) by using a file manager tool, and right clicking on the N810 file and slecting "Open With". Choose "MS Word, or Word Pad" as the software to open the N810 word processor file in.