University of Oregon

InDesign CS5.5 Files

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Files created in Adobe InDesign CS5.5 cannot be opened with previous versions. You will get this error: 'Cannot open "filename.indd". Please upgrade your plug-ins to their latest versions, or upgrade to the latest version of Adobe InDesign.'

Here's the fix:

Export InDesign 5.5 Documents for Backwards Compatibility

  1. From the File menu in InDesign CS5.5, click 'Export...'
  2. From the pulldown menu, select 'InDesign Markup (IDML)'
  3. Click Save.
  4. The newly exported file can now be opened in InDesign CS5 or CS4.