How to find and correct people without a proper gender in your GEDCOM file

It's a requirement that everyone in your genetic family tree has a proper gender (either "M" or "F")

You're being reminded of this when you start your GEDCOM import:

Please take note on point #2 and #3 as well.

Otherwise your GEDCOM import will fail at a much later stage and all your progress is gone:

Easiest method to find all people who have an improper gender

1) Open your GEDCOM file with a text file editor (eg. Notepad in Microsoft Windows or TextEdit in MacOS). This can be done by right-clicking the GEDCOM file.

2) Open a search for that file - It can be invoked directly with Search > Find or the keyboard shortcut Ctrl+F in the Notepad app (Windows). For MacOS it's CMD+F in the TextEdit app.

3) Enter "SEX U" into the search bar (without the ") and it will highlight the lines where it finds the missing gender:

4) Place your cursor just after the "U" and change it to either "M" or "F", in case it's unknown (as in this example) then just chose either one, it doesn't make a difference as this person has no added value in a genetic family tree anyways.

5) Continue to the next occurance until all are done

6) Save your edited file - make sure you use Notepad and not Wordpad as that will add new formatting to your simple text file (which might make it an improper GEDCOM file in the process).

Now you can import your GEDCOM file.