Open Office is very similar to Microsoft Office. It features Open Office Calc (similar to Microsoft Excel), Open Office Impress (similar to Microsoft PowerPoint) and Open Office Writer (similar to Microsoft Word). The Open Office suite also includes Open Office Base, which is a database manager, and Open Office Math, which specializes in mathematical formulas. Open Office files can be saved in all kinds of formats (DOC, DOCX, XLS, XLSX, and more).
Supported Language(s): 40 languages including English, French, Spanish and ItalianDownload Size (Mb): 440
System Requirements: Windows XP/2003/2012/Vista/7/8/8.1/10, 256 MB of RAM, 650 MB available disk space, 1024 x 768 or higher resolution with at least 256 colours, Java Runtime Environment 1.5.x or better
Price: Free
Website: http://www.openoffice.org/why/
Developer: The Apache Software Foundation
Download: http://www.openoffice.org/download/index.html