there is actually a complete, free, office suite by Sun Microsystems (the Java people) called OpenOffice which includes Writer, Calc, Impress, Draw and Base.
they're the Microsoft equivalent of Word, Excel, PowerPoint, Paint (a little more options and functionality) and Access.
it's completely free, open source software, by a trusted company...the only drawback is that it's not Microsoft compatible. You can create but you can't open any previously saved Word documents, Excel spreadsheets or PowerPoint presentations
if you want software to use, this is a great office suite. if you want to use it for others who only have Microsoft compatible programs, it's not going to work because they won't be able to open your documents unless they install it, too.
OpenOffice.org homepage:
http://www.openoffice.org/Features:
http://why.openoffice.org/why_great.htmli have this & it's really good...except for the NOT Microsoft compatible part.
i purchased KingSoft Office which only includes document, spreadsheet & presentation programs for $69.95 (for a single user). you can download it and get a 100 day trial if you just want to check it out. this IS Microsoft compatible
http://www.kingsoftresearch.com/KSOScreenIms.aspxKingsoft Office isn't free, but it's WAY cheaper than buying Microsoft Office which is about $150.00 for the same if you get the Home/Student version.
if you really need free software, try the OpenOffice.