There is Microsoft Office and iWork, but this site is only freeware. OpenOffice is a completely free office program which features everything you need, including compatibility with all of the Microsoft Office files. It has a word processor Writer (Word/Pages), Calc for creating spreadsheets (Excel/Numbers), Impress for creating presentations (PowerPoint/Keynote), Draw for creating things like designs (Not in MSO or iWork), and Base, for creating databases (Not in MSO or iWork). OpenOffice is made by Sun, and here is the best part: it works for EVERY operating system imaginable. Say you run a business and you want to straighten out your budget. Bam. Just use OpenOffice. The software is easy to use, and really straightforward. Really struggling with money? Switch to Ubuntu, and Ubuntu even comes with OpenOffice. Also, if you have just switched to a new operating system and you need to start with office documents fast, just use OpenOffice. I have OpenOffice installed on all of my Windows 7 computers, which in fact, does include my MacBook. I installed it on my HP as well. Sorry, it was just rumored to be so much better and it was free, so what the heck. Why not. OpenOffice is great for someone who is a publisher, hi-tech business employee, freeware fanatic, or just someone who needs to write something down, make a presentation, letter, database, spreadsheet, or design. Or even someone with every single operating system imaginable. Easy free office pack- Openoffice.org.