Can Microsoft Office 365 or a similar web app be used from Ubuntu?

view story

http://askubuntu.com – I need to generate Word documents (both .doc and .docx), which will work on a typical Windows or Mac setup with any common version of Microsoft Word to the degree possible. LibreOffice sometimes doesn't do the job, the layout comes out different.) This thread explains how to verify a document for Word compatibility using SkyDrive. Is there a solution that allows editing? Would Office 365 (paid subscription) work in Firefox/Chrome(ium)/?? on Ubuntu? (HowTos)