@Pernas Music Maker should be able to load all standard audio files. But only audio loops that are located in a Soundpool compatible folder structure can be shown in the Loop Manager. Both loop packs are not Magix Soundpools. So this wouldn't work without creating the folders by hand first.
The description reads that you need VSTs like Serum or Kontakt to use some of the presets which aren't part of Music Maker but separate products.