The title says it all, i don't know how to add my single player world to mcgalaxy and i have looked everywhere for the answer.

 

thanks, randodom 

Try copying your world (make sure you saved it via "Save Level" in the menu beforehand) to extra/import (in the server's files) and then go in the server and enter in /import <world name>.

Hope this answers your question.

thank you so much for helping me 

very easy, just go to Extra -> Import, and then you copy the .cw file into "Import", after that in-game or in the console you write this command

/import [map name]

hope this helps