Convert Adobe InDesign CS6 to InDesign CS5 via Markzware‘s MarkzTools for InDesign:
MarkzTools for InDesign is an InDesign plugin that can convert InDesign CS6 to CS5. It allows InDesign CS5 users to convert InDesign CS6 or higher files to CS5. This is done without the need for an intermediary IDML file. Now, you can open higher InDesign file versions (InDesign CS5.5, CS6, CC or CC 2014) within CS5!
Convert Adobe InDesign CS6 to InDesign CS5 via
MarkzTools for InDesign
How to Use MarkzTools for InDesign
• Go to the MarkzTools menu.
• Select “Convert InDesign Document“.
• Select the InDesign document that you want to convert.

The Annual Subscription gives the user 1 year of the use of MarkzTools for CS6, CS5.5 and CS5 Mac on a single computer. This includes all updates and upgrades during that year, starting on the date of purchase. After the year is over, users can renew their subscription to continue using MarkzTools.
For more information on Markzware‘s InDesign plugin to open InDesign CC in lower versions, please see the MarkzTools page. For more data conversion solutions and conversion tools, please see the Markzware Products page.
Convert Adobe InDesign CS6 to InDesign CS5 via MarkzTools for InDesign
