You don't need to read anything to spot a text file

Far more insidious than the thumbs.db are the MAC bits and pieces that can sneak in, these drive me mad because I manually install everything so that it is in the right subcatgory of the specific Runtime.  XP will brainfart on moving these so you can't just go and copy from Geometries or Textures to your chosen destination, oh no you have to go right down to the final folder in that section and then rebuild the particular path in your Runtime so that you can put it where you want it.