https://community.graphisoft.com/t5/Installation-update/Can-t-open-a-file/m-p/273702#M28339 This is actually impossible since AC files will open regardless of platform.<BR /> Check that you copied the correct file and/or that you have the same version of AC (i.e. AC22 will not be able to open an AC23 file). Wed, 20 Nov 2019 10:34:32 GMT Eduardo Rolon 2019-11-20T10:34:32Z https://community.graphisoft.com/t5/Installation-update/Can-t-open-a-file/m-p/273701#M28338 <DIV class="actalk-migrated-content">Created and worked with the file on Windows, then switched to Mac and it dosen't open anymore. Is this problem can be solved? Thanks in advance!</DIV> Tue, 30 Jan 2024 10:31:39 GMT https://community.graphisoft.com/t5/Installation-update/Can-t-open-a-file/m-p/273701#M28338 Anonymous 2024-01-30T10:31:39Z https://community.graphisoft.com/t5/Installation-update/Can-t-open-a-file/m-p/273702#M28339 This is actually impossible since AC files will open regardless of platform.<BR /> Check that you copied the correct file and/or that you have the same version of AC (i.e. AC22 will not be able to open an AC23 file). Wed, 20 Nov 2019 10:34:32 GMT https://community.graphisoft.com/t5/Installation-update/Can-t-open-a-file/m-p/273702#M28339 Eduardo Rolon 2019-11-20T10:34:32Z https://community.graphisoft.com/t5/Installation-update/Can-t-open-a-file/m-p/273703#M28340 What actually happens when you try? Thu, 21 Nov 2019 01:30:58 GMT https://community.graphisoft.com/t5/Installation-update/Can-t-open-a-file/m-p/273703#M28340 Lingwisyer 2019-11-21T01:30:58Z