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Which filetypes can be explicitly searched for in Google search?

I was surprised not to find any data in the following google search

US Politics filetype:csv

After some tinkering, I realised any search for filetype:csv will return 0 results!

In the past, searches with filetype:csv would return results. There's nothing wrong with the operator itself, just the value, e.g. a search with filetype:pdf will return results.

What is the full list of acceptable values for filetype operator in Google search?

Solution

  • According to Google Advanced Search, the entire list is:

    • Adobe Acrobat PDF (.pdf)
    • Adobe Postscript (.ps)
    • Autodesk DWF (.dwf)
    • Google Earth KML (.kml)
    • Google Earth KMZ (.kmz)
    • Microsoft Excel (.xls)
    • Microsoft Powerpoint (.ppt)
    • Microsoft Word (.doc)
    • Rich Text Format (.rtf)
    • Shockwave Flash (.swf)