A snapshot in time: deposited files in August 2010

A typical month (for the summer) of deposits at ICPSR by file format type:

# files	File format	# of deposits
3	application/msaccess	2
3	application/msoffice	2
159	application/msword	29
359	application/pdf	30
13	application/vnd.ms-excel	6
24	application/vnd.ms-powerpoint	2
31	application/x-sas	5
88	application/x-spss	27
2	application/x-stata	2
1	application/x-zip	1
1	audio/mpeg	1
1	image/png	1
5	message/rfc822	2
30	text/html	2
1	text/plain; charset=iso-8859-1	1
24	text/plain; charset=unknown	4
423	text/plain; charset=us-ascii	18
5	text/rtf	4
8	text/x-c; charset=us-ascii	2
1	text/x-mail; charset=us-ascii	1
5	text/xml	2

Lots of plain text and PDF. Plenty of files in the typical stat packages. A handful of Microsoft Office formats.

Our main tool for automagically calculating MIME types is file, and almost certainly the files it identified as C program text are actually just plain text, or maybe a setup file.