There is also an ongoing series of tests made to check roundtripping (export to IFC + re-import) on several platforms at [IFC_roundtrip_specifications.md](./IFC_roundtrip_specifications.md)
Per usual, unless otherwise noted, all content associated with [OpeningDesign](http://openingdesign.com) projects is licensed under an open source, 'copyleft' license:
[Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)](https://creativecommons.org/licenses/by-sa/4.0/). Attribution to be given to the entire team associated with the project.