So where are all the OOXML documents?

Google has a nice feature that allows you to search for documents that match a given file type. This is done by adding "filetype:NNN" to your query, where NNN corresponds to the file type. This feature has supported the ODF and OOXML document formats for at least two months, when I first noticed it. I've been tracking some numbers since then and now have enough data to make some observations.

At last count the totals were:

Format	Count
ODT	85,200
ODS	20,700
ODP	43,400
Total ODF	149,300
DOCX	471
XLSX	63
PPTX	69
Total OOXML	603

http://www.robweir.com/blog/2007/05/so-where-are-all-ooxml-documents.html