day01.rac_basic_sample_project.rvt_
Instructions: OpenLab does not permit the upload of either Autocad or Revit files so I fooled the system. Ā I added the extension ppt at the end of the Revit file so the website sees it as a PowerPoint file.
Download this file and remove the ppt extension so the file ends with .rvt
Then you will be able to open this file in RevitĀ version 14 or newer.