On computers and mobile devices, file extensions are the suffixes that apps append to filenames. When you see an item like "document.docx" for example, the .docx extension tells the computer and the ...

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 ...

Windows File Explorer offers a lot of options to change how you view files. What you might not know is that one important option is disabled by default, even though it's crucial to the security of ...

I use my Mac in a multi OS environment (i.e. with Windows) and whenever I take a screenshot (Cmd-Shift-4) intended for a PC user, I have to go to information and tell the OS not to hide the extension ...