Question

I have my family tree on My Heritage how do I upload this to Wiki

Comments

You can download a gedcom file but the recommendation is to rewrite it

 Lessoned learned is 

1. it is better to create profiles manually than import unsourced GEDCOM profiles - quality before quantity
    
2. you have a big family tree we strongly encourage you to import just a piece at a time. See splitting a GEDCOM.

Answer 1

I would see the page for gedcoms it has a lot of good tips on how to convert into wiki see this page : http://www.wikitree.com/wiki/GEDCOM