How to modify the file format in the Win7 flagship computer

1. First of all, we in the Win7 flagship computer randomly open a folder, open on the can, regardless of whether there are any files can be. After that, in the Open folder window, we click the Organization-folder option at the top of the window.

2. After that, we can open a Folder option window, as shown in the following figure. We switch the interface in the Open folder window to view this column, and then find the "hidden or known extensions" option in the Advanced Settings list below, we remove the check in front of this option, and then click on the application below the window to make sure.

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