A file extension, or file name extension, is the letters immediately shown after the last period in a file name. For example, the file extension.txt has an extension of .txt. This extension allows the ...

Ever got stuck with a file that has some mysterious extension? Where no matter how much you try, the Jigsaw puzzle doesn’t seem to fit together? So, for instance, if the file has the extension ...

Every file that we have saved on our computers has a particular extension. The file extension is added at the end of the filename followed by a dot (.). It tells the operating systems about the ...

Microsoft hides file extensions in Windows by default even though it's a security risk that is commonly abused by phishing emails and malware distributors to trick people into opening malicious files.

When you copy a file or folder to the same location on your local drive in Windows PC, a copy of that file or folder will be created with the – Copy extension added at the end of the file/folder name ...

When you need to know when a file or folder appears, disappears or is renamed -- in fact, if almost anything at all happens in the file system -- you can have Windows notify your application so that ...

Yesterday we reported on a new folder action which checks for correspondence between a filename's extension and the type/kind in order to find files that may be indicative to the Mac OS X type/creator ...