PortableApps Suite is a collection of portable apps including a web browser, email client, office suite, calendar/scheduler, instant messaging client, antivirus, sudoku game, backup utility and integrated menu, all preconfigured to work portably. Just drop it on your portable device and you're ready to go.
PortableApps Suite (Standard Edition): ClamWin Portable (antivirus), Mozilla Firefox - Portable Edition (web browser), Gaim Portable (instant messaging), OpenOffice.org Portable (office suite), Sudoku Portable (puzzle game), Mozilla Sunbird - Portable Edition (calendar/task manager) and Mozilla Thunderbird - Portable Edition (email client) and runs comfortably from a 512MB drive.
LibreOffice is a powerful all-in-one office suite for Windows and Linux that combines pretty much everything you need to increase workflow productivity. Portable version also available.
Microsoft Office 2007 [ 2015-10-16 09:26:07 | N\A | Shareware | Win 10 / 8 / 7 / Vista / XP | 5 ]
Apache OpenOffice For Windows is a free, Open Source MS Office alternative with a Word-compatible word processor, a complete Excel-compatible spreadsheet program, and more. Portable version is also available.