http://windows.microsoft.com/en-US/windows7/Show-or-hide-file-name-extensions
How to show the file extention listing in a folder?
How do I have the directory show my file extension when listing the files in a given folder?
Windows for home | Previous Windows versions | Files, folders, and storage
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Anonymous
2012-05-13T14:05:50+00:00
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Anonymous
2012-05-13T14:05:28+00:00 How do I have the directory show my file extension when listing the files in a given folder?
It will show many - but Microsoft decided - for some reason - to hide extensions of some files many years back by default. I guess it was the whole "Apple" attitude - where the end-user really usually doesn't understand or need it - so why show them too much 'behind the scenes' and confuse or frighten them?
Try this:
How to show or hide file name extensions in Windows Explorer