LibreOffice looks and feels much like Microsoft Office, and the resemblance isn’t just skin deep! It lets you import files from Word, Excel, and PowerPoint, and work on them and share them just as if you were using Office. You can even create new documents, spreadsheets, and presentations in Office’s file formats, and your friends won’t know the difference.

LibreOffice is open-source software, which is created by volunteers and by employees at corporations which use it. They don’t mind sharing, so you’re welcome to download it for your Mac or your Windows or Linux PC.