The only 2 real Microsoft Office Alternatives are OpenOffice and LibreOffice. I have been lucky enough to support and use Microsoft Office, OpenOffice and LibreOffice in the work place and personal. If you are familiar with using Microsoft Office, you’ll be fine making the transition to OpenOffice or LibreOffice. Both programs are virtually identical and will not leave you short on office tools. Currently Microsoft Office 365 plus 1TB of OneDrive can be had for $69.99 per year. That’s not bad. However, these open source office suites are finely tuned, fast and bug free. Not to mention, OpenOffice and LibreOffice are completely free. Or donate, they deserve it. These open source office suite alternatives are slowly becoming more attractive to the paying Microsoft Office customer and soon to be in the workplace everywhere. Businesses will eventually figure out how much money they could be saving by using a product that performs exactly the same as Microsoft Office but is free.
Currently I have LibreOffice 4.4.4 installed on my Windows 8.1 computer. If I need to create an invoice, document, presentation and email or print, I can. Microsoft Office, OpenOffice and LibreOffice work well together. Each program offers many file formats to “save as” for cross platform compatibility.
Post questions and comments below.