Please see this post as a starting point if you export a gedcom from FTM. But...please do some more reading and thinking about the effort required to validate each entry and then clean up the horrible formatting mess that a gedcom import leaves behind. Part of why WikiTree is mostly good is because it requires a human being to think about what they are creating and editing.
And one last point in case you weren't aware, within your copy of FTM it is "your" tree. On WikiTree it is "the single shared copy of a worldwide family tree that we all are responsible for jointly" so the requirements for quality sources and provable family members goes up dramatically.
