Publishing the IPA from Ionic Pro to Apple App Store

I’m completely lost: I have an ionic Pro Account with a Distribution Provisioning Certificate added. Ionic Pro compiled a shiny IPA file for me that I downloaded. How can I now upload this beast to the App Store? I can’t import the IPA to XCODE or something, so there might be another way. But I can’t find any Tutorial on ho wto do this. Any hint appreciated.

use Application Loader app

If I took ionic pro it’s because I don’t have an Apple computer