There is a tutorial on Youtube available: https://youtu.be/lRlWnYDwz0E

The handling is straight forward:

• Copy the downloaded .blend-file to your asset library
• Update the Asset Browser, if necessary
• Select the "user library" instead of "current file"
• Select the "Materials" -> "Wood"
  
• Drag and drop the material to the object of choice
• Tweak the material to your needs