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Cura 3.3.1 on Mac - unable to open project file

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You open projects with the same File -> Open... command you use for opening meshes.


When you open a project, Cura asks if you want to open it as (a collection of) models, or as a project.


Note there’s a preference in General preferences that may suppress the aforementioned question.

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Thank you.  I tried that and found  my project files were greyed-out in the list, implying they weren't in a supported format.  When I looked closely I found they had not been given the .3mf extension!  I have to manually put the .3mf extension at the end of the project files I save, then it works.


At least I can save and open projects now so thank you.



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