As the name itself suggests, this is an Open Source, and thus, free software which you could easily find and download through the internet. One of the best known open source software that effectively serves as a substitute for Microsoft Office is LibreOffice. If you are willing to adjust, then here are the 5 Microsoft Office Alternatives you could make use of for the mean time. Because of this, a lot of people may opt to use free software, or maybe those which would cost less than that of Microsoft. The shift from Windows to Mac, however, would entail purchasing the software all over again, which could be a hassle and a financial burden for anyone. Whatever the OS, one of the most popular software/applications used is the office suite, with the Microsoft Office one which is the most highly preferred. The second most highly-preferred operating software is Mac OS, which is used across all Apple Computers, or the Mac. Despite the massive popularity of Windows, there just are some people who wish to jump ship. Having said that, a lot of the basic software that we make use of nowadays are tailored to suit the preference and/or compatibility with Microsoft OS users. The Windows OS is, without question the single most popular Operating System for all computers across the world.