You can download, for free of course, an alternative to Microsoft Word, Excel, etc. This software can open and save documents in Word and Excel formats and is totally free.
OpenOffice is an open-source office productivity software suite whose main components are for word processing, spreadsheets, presentations, graphics, and databases. OpenOffice is available for a number of different computer operating systems, is distributed as free software and is written using its own GUI toolkit. It supports the ISO/IEC standard Open Document Format (ODF) for data interchange as its default file format, as well as Microsoft Office formats among others. As of June 2011[update], OpenOffice.org supports over 120 languages.
It takes 15-20 minutes to download and about 5-10 minutes to install and you’re ready to go.