your answer
The filename on disk is unimportant, and can be anything, what matters is the name of the font in Applications, which will be Spidestedet Regular in your case.
You can change the filename in Windows Explorer if you wish, but it is easier to identify fonts by their font family names.
Why can’t I choose the name of my file?
every time I change the file. I must first delete the old one. then rename the new one to the old file name.
there is still an export bug. see ttf_04.png
