Use this material package to enumerate
File 1
File 2
File 3
You can delete the meaningless file 2 and open file 1 to directly display file 3.
You need to make your materials closer together. The resolution of these images is too large, and there will be lag when importing into Aseprite.
Put the same size materials on a png, name the PNG image to reduce the number of unnecessary files, like this
Many itch pixel painters do not provide Aseprite source files, because drag the picture to Aseprite, Aseprite will automatically recognize and generate animation frames, which can reduce the file size
This is a negative teaching material
If it's just one file like this, that's okay. When all files are like this, I will find it very cumbersome and won't waste energy on opening and closing folders.