What file formats are supported?

Document:
doc - Microsoft Word Document
docx - Microsoft Word Document 2010
rtf - Rich Text Format
odt - OpenDocument Text
htm - Hyper Text Markup
html - Hyper Text Markup Language
txt - Plain Text Document
 
Sheet:
xls - Microsoft Excel Spreadsheet
xlsx - Microsoft Excel Spreadsheet 2010
ods - OpenOffice Open Document Spreadsheet
csv - Comma Separated Values
tsv - Tab Separated Values
 
Presentation:
ppt - Microsoft PowerPoint
pptx - Microsoft PowerPoint 2010
pps - PowerPoint Slideshow
ppsx - PowerPoint Slideshow 2010
odp - OpenOffice Open Document Presentation
sxi - OpenOffice.org Presentation File