I make a LOT of use of InDesign's XML import capability. The granularity to which I can define character and paragraph styles that automatically get defined when importing has made my workflow faster than I ever thought possible (and I have XML records that can be scraped to build databases). If you could provide XML import in some fashion, I could fire Adobe and be perfectly happy with your product.
Barring an import capability, is there any information on the Affinity File Format that has been published, or is it all proprietary?
Thanks in advance for your replies