Hello community!
I am not having any success importing a report into Designer that was made in the OpenXML format. The system that is generating the report file is EPIC (Hospital EHR system). It generates an .XML file that I'm unable to bring into Designer. We've been manually opening the report in Excel (where it opens without issue) and then saving as an XLSX file. As the workflow is fully automated and needs to be run from the server, I'm trying to find a way to import the file directly.
I get the following error when dragging and dropping the file:

Checking the "Ignore XML Errors and Continue" gives the following:

This is not useful, but in a different way!
The file, when opened in Excel, has 27 columns and 92658 rows of data. Here's the 'info' sheet contents:

Does anyone have any experience importing an OpenXML file? Bonus points if it is a report out of Epic. We were told that this format is the only one available to export our data. The data we're after isn't patient info, but EPIC account info of when a user's account was created / activated.
Any assistance is greatly appreciated!