Open New version Files in Old Archicad Versions

[Anonymous]

Hi everyone I am using Archicad 18 and created a project in this version.However the project I created is not opened in another computer which has archicad 12 version.How can I solve this problem? Thank you...

[Barry Kelly]

There are only two ways to solve this.

One is to upgrade the computer with version 12 to version 18.
This of course will cost you (or them) financially.

The second is to save the version 18 file as a version 17 PLN and then open that in 17 and save as 16, open in 16 and save as 15 .... all the way back to version 12.
This is free if you have all the versions.
Having a license for 18 entitles you to use all the older versions but if you don't already have them you may find it difficult to download them.
You could try contacting your local distributor.

Barry.