Sample files of various formats and schema versions for testing implementations.
It is adviced to install Git LFS (https://git-lfs.github.com/)
Please add your files by sending a pull request. Be aware that you are publishing under the Creative Commons Attribution 4.0 International License. Put your files in a seperate folder, and add a README.MD with additional information. Please add the MVD that was used during export, the date of export, a short description and the original author (copyright holder). E-mail technical@buildingsmart.org for any questions.
Have a look at http://openifcmodel.cs.auckland.ac.nz/ for other IFC files and examples as well.