OpenOffice.org Portable
the complete office suite that’s completely portable
OpenOffice.org Portable (formerly Portable OpenOffice.org) is the complete OpenOffice.org office suite — including a word processor, spreadsheet, presentation tool, drawing package and database — packaged as a portable app, so you can take all your documents and everything you need to work with them wherever you go.
对于庞大的 ms office已然很吃力了，还是用openoffice吧。。。
V2.2.0 简体中文正式版 (包含 JRE 6.0 update 1)