With the help of converters and viewers from Office Online, you can share your Microsoft Office files with people who have different versions of Office programs, or even with people who don't have Office installed.
Converters allow you to open files created by people using different versions of your Office programs.
Viewers provide a means for people who don't have Office programs to see your work. You can provide them with the appropriate viewer along with your Office files.
Converters for Word, Excel and PowerPoint
Excel converters and viewers
Outlook converters and viewers
PowerPoint converters and viewers
Microsoft Project converters
Visio converters and viewers
Word converters and viewers
Converters and viewers for Macintosh users