Microsoft Windows shell extensions that pack .gltf to .glb and unpack .glb to .gltf
This tool is distributed through the Windows Store. Install the latest version here.
Right-click on a .gltf file and select Pack to Binary glTF.
Select a name for the new .glb file.
Right-click on a .glb file and select Unpack to glTF.
Select a destination folder for the glTF files and click on the Unpack button.
