How to change the suffix of text in win7?

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Preface

虚拟机操作时遇到的小问题，这里速记一下。

How to change the suffix of text in win7?

Double-click on the desktop 计算机icon to open the computer, then click on the 组织menu, click on the menu that appears 文件夹选项.

Then click the View option in the small window that opens, and find the option to hide the extensions of known types of files in the opened page. You can see that the tick in the box in front of it is ticked.

Then remove the check in the box in front of the option to hide file extensions of known types, and click the OK button below.

Take a look again, you can already change the suffix!

Then find the file whose suffix name needs to be modified. At this time, you can modify its suffix name.

Ending!
More course knowledge learning records will come later!

就酱，嘎啦！

Note:
Life is diligent, nothing is gained.