If you're using RPG Maker MV/MZ:
- Take the tileset files from the 48px folder and put them under img/tilesets in your project folder.
- Take the animations from the 48px folder and put them in img/characters.
- Open your project and the sample maps together, then open the databases and tileset tab for both.
- Right click the sample map's tileset and copy it.
- Paste under in your game's tileset tab. This will bring over all the tileset's settings so you don't have to configure it.
Going off memory here after a night of insomnia but that should get you moving in the right direction.