OpenOffice - 取代微軟Office的自由軟體，1998年誕生於德國，隔年被昇陽公司收購，意圖以此軟體取代微軟Office，發展至今，已可以開啟Microsoft Office 97-2007的檔案，也被許多公司、網咖採用，完全免費。（阿榮）
下載連結→ https://www.azofreeware.com/p/openoffice.html
官方網站：The Apache Software Foundation（可攜版）
軟體性質：自由軟體（免費）
介面語言：繁體中文（含多國語系）
系統需求：Windows
關鍵字：OOo, OO.o, openofficeportable
阿榮評語：
[2012.05.15] 軟體名稱由「OpenOffice.org」改為「Apache OpenOffice」。
OpenOffice Portable is the leading open-source office software suite for word processing, spreadsheets, presentations, graphics, databases and more. It is available in many languages and works on all common computers. It stores all your data in an international open standard format and can also read and write files from other common office software packages. It can be downloaded and used completely free of charge for any purpose.