the Export button is supposed to create a Json file to import for new world creation?

I have tried multiple times to create a file to import, but my computer can't seem to find the 'created' file. I have 2 drives, and have thoroughly searched both to the best of my knowledge of how computers work for the files supposedly created, but they simply never got created? I have checked the storage capacity of both drives, and from before and after creating another export, their open byte storage capacity did not change. It would be a huge help if upon selecting export, there were capability to choose where to send this file specifically for easy location when creating a new world to test the reintroduced world generation settings, as well as to be sure it got created at all.