In this library, Japanese cuisine items are presented. Objects are modeled to be as low-poly as possible, and textures are handcrafted. Textures are visible in the Shader Editor, where you can change them using a color ramp. Additionally, preferences allow you to adjust the amount of sesame seeds on sushi and the number of leaves on tree. To access the library in all your Blend files, you need to specify the library path: Preferences > Add path > Locate where you saved the zip file and select Library_files_2. Then in the Asset Browser, you'll see Library_files_2 containing all the objects. Since some objects are collections, you need to make instances real to be able to edit them in a new file. Make instances real in the new file where you intend to edit the objects. It's not advisable to delete or modify anything from the original file, as it may cause issues with objects being removed or deleted from the library.