Show File Extensions

config/tweaks.json

2496  "WPFToggleShowExt": {
2497    "Content": "Show File Extensions",
2498    "Description": "If enabled, File extensions (e.g., .txt, .jpg) are visible.",
2499    "category": "Customize Preferences",
2500    "panel": "2",
2501    "Type": "Toggle",
2502    "registry": [
2503      {
2504        "Path": "HKCU:\\Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Advanced",
2505        "Name": "HideFileExt",
2506        "Value": "0",
2507        "Type": "DWord",
2508        "OriginalValue": "1",
2509        "DefaultState": "false"
2510      }
2511    ],
2512    "InvokeScript": [
2513      "
2514      Invoke-WinUtilExplorerUpdate -action \"restart\"
2515      "
2516    ],
2517    "UndoScript": [
2518      "
2519      Invoke-WinUtilExplorerUpdate -action \"restart\"
2520      "
2521    ],

Registry Changes

Applications and System Components store and retrieve configuration data to modify Windows settings, so we can use the registry to change many settings in one place.

You can find information about the registry on Wikipedia and Microsoft’s Website.