https://community.graphisoft.com/t5/Collaboration-with-other/How-to-open-files-from-very-old-versions-of-AC/m-p/164352#M18788 I will try. Thank you. Sun, 14 Sep 2008 20:33:04 GMT Anonymous 2008-09-14T20:33:04Z https://community.graphisoft.com/t5/Collaboration-with-other/How-to-open-files-from-very-old-versions-of-AC/m-p/164350#M18786 <DIV class="actalk-migrated-content"><T>Hello<BR /> I have old files (v. 5.0. 6.5, 7...) that I would like to open. I am now working with Archicad 11 and I can't open those files. Any ideas ?<BR /> Thank U</T></DIV> Sun, 14 Sep 2008 01:27:09 GMT https://community.graphisoft.com/t5/Collaboration-with-other/How-to-open-files-from-very-old-versions-of-AC/m-p/164350#M18786 Anonymous 2008-09-14T01:27:09Z https://community.graphisoft.com/t5/Collaboration-with-other/How-to-open-files-from-very-old-versions-of-AC/m-p/164351#M18787 brunours:<BR /> <BR /> Try opening first with an intermediary version, like version 9, and saving the file, then opening with version 11.<BR /> <BR /> You should add a Signature to your Profile (click the Profile button near the top of this page) with your ArchiCAD version and operating system (see mine for an example) for more accurate help in this forum.<BR /> <BR /> David Sun, 14 Sep 2008 01:53:00 GMT https://community.graphisoft.com/t5/Collaboration-with-other/How-to-open-files-from-very-old-versions-of-AC/m-p/164351#M18787 David Maudlin 2008-09-14T01:53:00Z https://community.graphisoft.com/t5/Collaboration-with-other/How-to-open-files-from-very-old-versions-of-AC/m-p/164352#M18788 I will try. Thank you. Sun, 14 Sep 2008 20:33:04 GMT https://community.graphisoft.com/t5/Collaboration-with-other/How-to-open-files-from-very-old-versions-of-AC/m-p/164352#M18788 Anonymous 2008-09-14T20:33:04Z