How do I import a GEDCOM file?

That is not how it is done on Geni. You cannot import a GEDCOM. Perhaps others will explain what you can do.

The best way to proceed is to start by adding yourself, your parents, and your grandparents onto Geni, then start using the Search function to see if you can find a match to profiles already posted. Repeat for each previous generation until you find such a match (you probably will, and it may not be as far back as you think). Merge the matching profiles, or get a Curator to do it for you, and you can then fill in relatives that are specifically yours and haven't been added yet.

Thanks all I understand that there is no way to bring in my Ancestry.com researcg into Geni. I had started out with a tree in Geni but had made huge progress in Ancestry. I was getting some requests from Geni user to link to entries in my dormant Geni tree but as more progress was being made in Ancestry my Geni tree became less reliable and so I deleted the whole tree to start again with an import from Ancestry. Starting again with BMDs and adresses makes no sense as my trees are extrensive both back in time and forward to the present. Anyway I will have to plough on now with ancestry alone as Geni seems to have too many issues in handling

Geni had a good reason for disallowing GEDCOM uploads: everybody and his aunt had extensive trees with multiple duplications, and the workload involved in getting them all checked, verified and merged was far in excess of what the small curator staff could handle (there are some profiles that *still* have multiple duplicates).

You might be able to do a selective import using the SmartCopy tool, but please, *please* don't duplicate any profiles that are already on Geni.

If you have alternate information that you think is as good or better for any of the profiles, please feel free to start a Discussion about it in the Discussion section.

Too bad you deleted your Tree, since you could probably have updated it using SmartCopy and your Ancestry Tree.

Second thought - if that Tree was from your current profile - perhaps you could undelete the profiles and update them using SmartCopy. Definitely Geni is not for delete and start over as you were thinking to do, but rather it is for fix and update and make better and add documentation.

There were too many mistakes and corrections needed to my tree in Geni. Which will off course mean that the Geni "Big Tree" is now wrong. I certainly don't have the bandwidth to correct it either. I guess it is a problem with the way that Geni's database works. It might have been more sensible to have offline personal trees that can then be flagged as links to the Big Tree. It is what it is I suppose. No going back.

What is SmartCopy by the way?

Looks like no way to undelete either. C'est la vie!

There is: For yourself the list of deleted profiles is: https://www.geni.com/list/deleted