I have several hundred embroidery designs that either came with the various software or that I downloaded. I personally am more interested in what they are for, rather than how they were made. This is the hierarchy I use:
Embroidery Designs
Abstract
Baby
Butterflies
Flowers
Fonts
Kitchen towels
Etc. etc.
After I download the design I change the name to something I can recognize i.e. 123984.jef to Ballerina girl.jef