Welcome! Here's a guide on how to access folder options and change view settings.
Note: This guide is based off Windows 11 but should be similar to at least Windows 10.
Step 1: Open File Explorer
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Step 2: Click the 3 dots
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Step 3: Click "Options"
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Step 4: Go to the "View" tab
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Step 5: Here you can disable Hide File Extensions, Show Hidden Files, and more!
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You can also access Folder Options by clicking "Tools" in Control Panel and clicking "Folder Options..."
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The end! Hope this helped!