Searching for Spreadsheets with Google

Is there anything that Google can't do? This via ResearchBuzz.com, I found out that by using various syntaxes you can find spreadsheets, in all sorts of formats, with Google.

Here's how it works:

• filetype:xls is the search string for finding any kind of Excel spreadsheet. For instance, you could type in planning filetype:xls and this is what you would come up with.
• ResearchBuzz came up with a few more special ways to mix up the syntax, including this little gem: intitle:gantt filetype:xls site:edu.
• Finding spreadsheets is not really my idea of a good time on the Web, but I'll contribute a search query: filetype:xls inurl:budget. My results are predictably full of budgety goodness.

Related: Most people only scratch the surface of the Web because they just don't know how to really dig deeper for the hidden stuff. Learn more about searching the Web with basic search strategies, searching with phrases, and basic Boolean.