I have a shop in ETSY selling vector clip arts opened awhile ago, still struggling. I've done some research in ETSY, and i realised some vector sellers out there provide buyers a whole bunch of sub-formats based on the same file.

I wonder it is really necessary, as converting all these files are quite time-consuming. It's a waste of effort if in the end your buyer just need your basic .eps files. (Oh btw,actually what's the difference between .ai and .eps? Isn't it works the same?)

I wish to know what formats do you provide? And base on your experience, who are your buyers and do they usually have basic knowledge on how to manipulate vector formats alone.

Cheers!