Comments on this tutorial:

If you can't change the extension of a file by right clicking on the file and going to properties, then try this way. Its a little primitive but it works.

1- Download and install a compression program if you don't already have one Ex: WinRar or WinZip. I will be using WinRAR this time. Note: WinRAR is a free software, you can download it here.

2- Once you have WinRAR installed, right click on the file you want to...

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