Over 3, graphics are included, and you also get more than 90 new fonts and a more detailed help guide. It also works with Microsoft's 'docx' standard, which most free office software isn't compatible with. Combined, they make for a powerful suite of programs.
Impress: Presentation software, it's the equivalent of Microsoft PowerPoint. Calc: A spreadsheet program, its equivalent of Excel. The programs included in LibreOffice are.
It's compatible with many Microsoft documents.
Yet you can furnish your machine with equivalents to most of its applications for nothing, thanks to open source alternatives. If your school doesn't qualify, Microsoft suggests asking your IT department to consider licensing Office through Microsoft's Volume Licensing program.