So you need to change the file extension of your text document to say, php. It sounds so simple, doesn’t it? Just hit rename and on the end of the filename, replace .txt with .php. Voila, right? Um…. But you can’t see the .txt part. Where is it?!?
Well, it’s hidden. Here’s how to make them and ALL other file extensions reappear in Windows XP.
Go to My Computer on your Desktop.
Go to Tools > Folder Options > View Tab.
Scroll down the list until you see “Hide extensions for known file types”
Uncheck this box.
Click on Apply and close out of the window.
And there you have it. It’s a good thing, too. Having hidden file extensions for known file types on your computer poses as a security risk because it can trick users into believing that that potentially harmful executable file [.EXE] is actually a picture of one of your friends [.JPG]. By disabling hidden file extensions, that “picture1.jpg” will appear as “picture1.jpg.exe“.
