点击屏幕左下角->开始
![[win7基础]-win7怎么显示文件扩展名,怎么显示扩展名win7（win7显示文件后缀名）](https://www.shebei4.com/wp-content/uploads/2021/11/65390a23beb9763e899187656ad06de89b61b0ea.png)
![[win7基础]-win7怎么显示文件扩展名,怎么显示扩展名win7（win7显示文件后缀名）](http://www.shebei4.com/wp-content/themes/justnews6.0.1/themer/assets/images/lazy.png)
点击“计算机”
![[win7基础]-win7怎么显示文件扩展名,怎么显示扩展名win7（win7显示文件后缀名）](https://www.shebei4.com/wp-content/uploads/2021/11/40d2d0e8b004541b635cce95869a310e1699a6ea.png)
选择“c"盘
![[win7基础]-win7怎么显示文件扩展名,怎么显示扩展名win7（win7显示文件后缀名）](https://www.shebei4.com/wp-content/uploads/2021/11/16d8f72abab84240d0adffa77ac595ee40c19eea.png)
打开后，可以发现扩展名被隐藏
![[win7基础]-win7怎么显示文件扩展名,怎么显示扩展名win7（win7显示文件后缀名）](https://www.shebei4.com/wp-content/uploads/2021/11/b666b2530688912c6699e05b1b4800fc76f797ea.png)
选择“组织”
![[win7基础]-win7怎么显示文件扩展名,怎么显示扩展名win7（win7显示文件后缀名）](https://www.shebei4.com/wp-content/uploads/2021/11/dda98e4800fc77f7505d6393c8715fdb372090ea.png)
选择“文件夹和搜索选项”
![[win7基础]-win7怎么显示文件扩展名,怎么显示扩展名win7（win7显示文件后缀名）](https://www.shebei4.com/wp-content/uploads/2021/11/76b6860e5f20437194880a93323acd8921c58fea.png)
选择“查看”
![[win7基础]-win7怎么显示文件扩展名,怎么显示扩展名win7（win7显示文件后缀名）](https://www.shebei4.com/wp-content/uploads/2021/11/b87bd38920c5260f5966e139d2de4507890189ea.png)
如图操作，“隐藏已知文件扩展名”
![[win7基础]-win7怎么显示文件扩展名,怎么显示扩展名win7（win7显示文件后缀名）](https://www.shebei4.com/wp-content/uploads/2021/11/a749bb0f94fc508c469dfb4b01775ddd894cfdea.png)
如图到不选中状态，并点击”确定“
![[win7基础]-win7怎么显示文件扩展名,怎么显示扩展名win7（win7显示文件后缀名）](https://www.shebei4.com/wp-content/uploads/2021/11/8b3643dd884ce54acc74db5ca3066b0193ddf7ea.png)
如图扩展名.txt ,已经显示，如果想恢复隐藏，请回到第8步，选中，点确定，就可以隐藏
![[win7基础]-win7怎么显示文件扩展名,怎么显示扩展名win7（win7显示文件后缀名）](https://www.shebei4.com/wp-content/uploads/2021/11/2947750192dd33405fa0ad34881c99c0aefcf1ea.png)
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