Tutorial on how to change win7 file extension

In most cases, changing the file type extension will result in the file being unable to be opened or used normally. But we can hide and protect files in this way. So how to change the file type extension in win7? In fact, just rename it.

Win7 file type extension changing tutorial

1. We can directly change the file type extension by renaming. But sometimes we will find that the extension is not displayed when renaming.

2. First click "Tools" above and then select "Folder Options"

3. Then enter " View" tab.

4. Uncheck the option shown in the icon, and then "OK"

5. In this way, we use the heavy You can change the file type extension by naming it.

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