Open source software is software that is free to use, modify, and distribute. Many people find that open source productivity software is just as good, if not better, than proprietary software. In this blog post, we'll take a look at the 10 best pieces of open source productivity software and explain why they are worth using. 1. LibreOffice: LibreOffice is a free and open source office suite that includes tools for word processing, spreadsheets, presentations, and more. It is a great al…