To Older Version 'link': How To Convert Indesign File

What if you don't have access to the newer InDesign at all? You have an old version (like CS6 or CC 2018) and you received a CC 2024 file. You need a middleman.

To convert an InDesign file for use in an older version, export it as an InDesign Markup (IDML) file via the "Save As" or "Save a Copy" function in the File menu. For versions newer than 2020, Adobe allows for direct conversion to IDML, while older formats (pre-CS4) require an InDesign Interchange (INX) intermediate step. For more details, visit Adobe Help Center Adobe Help Center how to convert indesign file to older version