InDesign vs QuarkXPress: Adobe INDD or Quark QXP App for Page Layouts? Which app may be better for creative professionals?
Import InDesign PDF or IDML into QuarkXPress without Adobe InDesign: Export InDesign to PDF/IDML. Import into Quark. No InDesign? See
Recycle InDesign Documents: Re-Use Adobe InDesign (INDD) File Content. Access layouts in other apps & file formats. See IDMarkz macOS
Import InDesign indd files into QuarkXPress qxp files with Adobe InDesign via PDF or IDML; or without, in Markzware IDMarkz
How to convert Adobe InDesign to your desktop publishing (DTP) app via automated file conversion in Markzware’s IDMarkz macOS app.
As we all cope with corona, Markzware is "Doing Our Part" offering the full version IDMarkz macOS to be used
Markzware explains how to open InDesign in QuarkXPress 2019 macOS, via the “Open in Quark” feature of the IDMarkz InDesign