This is two revised virtual cabin texture files for the Maddog in MSFS done via their paintkit.
The files have more white cabin plastics incuding ceiling, overhead bins as well as revised more generic galley peices, and dark blue generic fabric seats with texture as well as matching head fabrics to make it transferable accross multipe carriers. Good for VR users exploring a fully 3D virtual cabin.
Simply unzip it and put the two files in the:
Community\lsh-maddogx-aircraft\SimObjects\Airplanes\MaddogX\texture
You can overwrite the x 2 .dds files, but make sure you BACK-UP the two texture files in case you want to revert back to the original two files.