Google can let you restrict your searches to only certain file types. This can be very helpful if you're looking specifically for file types, such as PowerPoint, (ppt) Word, (doc) or Adobe PDF.
More Google Quick Tips
To restrict your search to a specific file type, use the filetype: command. For example, try searching for:
bad hotel filetype:ppt
You can use this same syntax with Google Desktop. To search for that forgotten widget report, try:
widget report filetype:doc
- Learn more about Google Desktop.
- Learn more Google power search tips.

