What kinds of files can I upload to the Documents List API?

The following file types can be uploaded via the Google Documents List API:
File extensionMIME type
CSVtext/csv
TSVtext/tab-separated-values
TABtext/tab-separated-values
HTMLtext/html
HTMtext/html
DOCapplication/msword
ODSapplication/x-vnd.oasis.opendocument.spreadsheet
ODTapplication/vnd.oasis.opendocument.text
RTFapplication/rtf
SXWapplication/vnd.sun.xml.writer
TXTtext/plain
XLSapplication/vnd.ms-excel
PPTapplication/vnd.ms-powerpoint
PPSapplication/vnd.ms-powerpoint