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 ...

A file extension is a suffix that is added to the end of a file name after a dot. It is usually two to four letters long. File extensions help Windows and other operating systems to know the standard ...

New installations of Windows hide all file extensions, except for Windows components, that would appear in Explorer or an application dialog box that displays file names. File extensions are ...

1How to view file name extensions for all files on a Mac 2How to view file name extensions for a individual file on a Mac The default setting for Mac OS is to not display a file's extension. For those ...

I was all set to put this “Windows Explorer Explained” series to rest for a while, but then reader Martin wrote in with a question that comes up a lot: in Windows 7, how do you reveal the hidden file ...

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 ...

Windows File Explorer provides a ton of options to change how you view your files. What you might not know is that a critical option is disabled by default, despite being vital to your system's safety ...

It’s easy to assume the files we download and install to our computers are exactly what they say they are. After all, an app with a high quality icon and a correct name to match looks legit: Why ...

From http://www.apple.com/macosx/newversion/<P><BLOCKQUOTE><font size="-1">quote:</font><HR>File extensions help Mac OS X maintain full Internet compatiblity, but ...