Export a fabrication job (.MAJ) from Revit and open it in an Autodesk Fabrication product. For example, you may want to export fabrication parts from Revit to Fabrication ESTmep for costing, Fabrication CAMduct for manufacture, or Fabrication CADmep for documenting additional detail, such as tags, spools, and reports.
Revit Extension for Fabrication panel
Import and Export. Click
Export Autodesk Fabrication Job File. Revit displays a message with the number of fabrication parts that were saved.