For starters, you can access documents through a web browser on any computer. Choosing a well-rounded free program also means that any student with a computer can access the software, so it puts every student on a level playing field. This software works across PC, Mac and mobile devices. Versatility How versatile your spreadsheet software should be depends entirely on what you want to use it for. If you have an active Internet connection, you can use the free Office Online instead. You are fine as long as you fire up a document and just type. This spreadsheet software has plenty of features and is versatile enough to equal its biggest premium-cost rivals.