A filename extension is a suffix to a filename. There’s the name of the file itself, then a period, then the extension. When you see Document.pdf, the ".pdf" is the extension. The filename extension is one of those things that’s a necessary evil in computing to differentiate one type of file from another. Some UNIX/Linux environments...

This guide is for anybody that has a whole bunch of files, be they photos, MP3s, documents or any other type of file you have that needs quick-sorting by date at a glance. There is only one right way to put the date in a file name. When I say "date in a file name" I mean that the actual title of the file has the date in it. The format you must use for...