What is the best free non malware program that can replace Microsoft office?

What is the best free non trial non malware program that can replace Microsoft office? it needs to allow me to edit doc, docx, ppt, pps, and spread sheet extensions.|||Open Office is a free, open-source, office suite. It can edit Microsoft Office documents and additionally has it's own filetypes it normally uses.





Here's a link to its website: http://www.openoffice.org/|||open office or neo office


http://www.openoffice.org


http://www.neooffice.org/|||openoffice at www.openoffice.org will cover everything for you.|||http://www.openoffice.org/|||microsoft office is not malware....its a word processor