A93.1 and BI Pub 11.1.1.7 - XML file from AP check creation not readable by BI Pub

 I can open the XML file manually and see that it indeed has data in it and is formatted in XML format. BI Publisher says that the file has an invalid extension. I try to grab it through the IFS share, and it doesn't appear. When I try to upload it manually it give me "Upload Failed:Invalid File Extension". I'm trying to create a data model so that I can start creating checks.