https://community.graphisoft.com/t5/Modeling/Open-New-version-Files-in-Old-Archicad-Versions/m-p/276110#M143317 <DIV class="actalk-migrated-content"><T>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...</T></DIV> Thu, 25 May 2023 15:56:44 GMT Anonymous 2023-05-25T15:56:44Z https://community.graphisoft.com/t5/Modeling/Open-New-version-Files-in-Old-Archicad-Versions/m-p/276110#M143317 <DIV class="actalk-migrated-content"><T>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...</T></DIV> Thu, 25 May 2023 15:56:44 GMT https://community.graphisoft.com/t5/Modeling/Open-New-version-Files-in-Old-Archicad-Versions/m-p/276110#M143317 Anonymous 2023-05-25T15:56:44Z https://community.graphisoft.com/t5/Modeling/Open-New-version-Files-in-Old-Archicad-Versions/m-p/276111#M143318 There are only two ways to solve this.<BR /> <BR /> One is to upgrade the computer with version 12 to version 18.<BR /> This of course will cost you (or them) financially.<BR /> <BR /> 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.<BR /> This is free if you have all the versions.<BR /> 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.<BR /> You could try contacting your local distributor.<BR /> <BR /> Barry. Fri, 12 Jun 2015 07:55:01 GMT https://community.graphisoft.com/t5/Modeling/Open-New-version-Files-in-Old-Archicad-Versions/m-p/276111#M143318 Barry Kelly 2015-06-12T07:55:01Z