is a text-based format that acts as a universal translator. It allows older versions of InDesign to open files created in newer versions.
Note: This requires an active internet connection and only works for Creative Cloud versions, not the older "CS" perpetual license versions. 3. What Happens to Your Links and Layout? how to convert indesign file to older version link
If you frequently work with clients who use outdated software, manually exporting IDMLs can be a chore. There are specialized tools that automate this process or allow older versions to read new files directly. is a text-based format that acts as a universal translator