You, can improve your productivity at Office using these top rated freeware tools , that do many of the document,presentation related task easily and that too for free .
OpenOffice - office suite (The best available on Linux,Windows)
PC Suite 602 - office suite
AbiWord - text editor
Atlantis Nova - text editor
Microsoft PowerPoint Viewer - power point [...]

Tiny USB Office features a wide array of programs, which are accessible with one click with the included Qsel portable program launcher software, and all these packages come FREE ..
Database Creation - with CSVed
Data Encryption - with DScrypt
Email Client Software - with NPopUK
File Compression - with 100 Zipper
File Sharing - with HFS
File Transfer - with [...]