This can be very helpful if you're looking specifically for file types, such as PowerPoint, (ppt) Word, (doc) or Adobe PDF.
Nke a nwere ike inye aka ma ọ bụrụ na ị na-achọ kpọmkwem maka ụdị faịlụ, dị ka PowerPoint, (ppt) Word, (doc) ma ọ bụ Adobe PDF.