The information in this article applies to:
When I go to double click on a .plan, .layout, .calib or .calibz file, the version of the Chief Architect software program that launches is not the version that I want to use.
How can I change this file association within Windows so that the version of Chief Architect I want will open when I double click on these file types?
If you have just installed a new version of Chief Architect or Home Designer software then when it first launches, it will display this message:
"Do you want to associate plan. layout, and library files with this program?"
Select Yes to associate plan, layout, and library files with this version of the program.
If you would like to re-associate these file types to use a different version of the software, please see the appropriate online Help Article for your operating system.
Mac OS X