Difference between have you done my work and did you do my work?

Have you done my work asks generically if you've ever at some point in time done that work. It has no specific time of start or completion of the action. Ongoing action over nonspecific length of time. Have I done the homework (for instance) of my friend in the past? Yes, on numerous occasions with no specific dates in mind.

Did you do my work asks did I do it and finish it specifically at a definable time in the past. I did your work last night. I did your work last week on Saturday. I did it, it is now finished.