how to detach the base mesh from a zsphere ?

[system]

hello guys

i would like to know if there is a way to retrieve the model that is being used as a base mesh for retopo ?

the thing is that i saved the file as a zsphere and i deleted the original ztool that is being used as the base mesh !
so i want to get the base mesh from the zphere but i dont know how i tried to delete the topology, zbrush wont let me export, i guess because its a zsphere attached to the file

i would appreciate if someone could hit me with some knowledge

thanks in adv. for taking the time

[TVeyes]

If I understand correctly you should simply select the Tool > SubTool that contains your basemesh before trying to export. If that subtool has multiple subdivision levels they will not be included in the exported file. Instead select the ZSphere subtool, delete it and save the Tool using a different filename.