File Extension Library

I used to work at a Mission Agency when I was in Philippines. I had an opportunity to help set up our Mission library. The hardest part of working on the library was sorting the books into their own categories. No of us were experts and knew how to started, but we made our own system that made it easier. How do we find the book that we want? My husband always borrows books about electronics, gadgets and other things from the public library here. To find the item you want, use the File Extension. File extension is that portion at the end of a filename (suffix) that describes its file type. The file extension can be from one to several characters long and can be usually identified easily since the filename and its extension are separated by a “.” like for example “computer.jpg”