How to change the extension?
A file extension change may be required, for example, in order for a program to correctly read the file, because sometimes a valid file extension may not correspond to the declared one. Now I will tell you how to change the file extension in Windows XP and in Windows 7. Let's start with a more modern system.
How to change file extension in Windows 7
The complexity of changing the extension in Windows 7 for many is that it is often just hidden from the user's eyes. To fix this, go to the "Start" menu and in the search bar type "Folder Options", then select the appropriate line in the list of found files. In the “Folder Options” at the top we find the “View” item and among the items we find the “Hide extensions ...” item, where we remove the check mark, then click “Apply” and “OK” below to close it. Now right-click on any file and select “Rename” - you will see that the extension (the letters at the end after the dot - for example, .doc or .avi or .mp3) is now available for changing. There is another way to enable this option.To do this, select a folder on your computer, open it and in the top menu on the left find the item “Arrange”. In it, select "Folder Options", and then everything is the same - "View", remove the check mark in "Hide extensions ..." and then click on the "Apply" and "OK" buttons.
How to change the extension in Windows XP
Sometimes it happens that the extension change may not be available in Windows XP. However, everything is also easily solved here, and the procedure itself is similar to how to enable the function of changing the file extension in Windows 7, as we described above. In XP, we first go to the “My Computer” folder and select “Tools” and then “Folder Options”. In the window that appears, click on the "View" tab, where to find "Hide extensions ..." and uncheck this box. Now click “Apply” and “OK”, after which you will see that all files have extensions that can be easily changed.