Answer : Sketchup is a 3D modeling software. IFC files are often used when talking about construction and architecture projects. Sketchup imports from or exports to all of the following file formats: IGES, STEP, STL, OBJ, DXF. If you were wondering this for a related purpose, it seems unlikely that Sketchup can be maximized in the export process if the goal is an IFC file input for another program. When exporting with preset options in Sketchup meant for printing or plotting in 2D projection spaces with a .PDF document extension (.pdf), not everything in your data may come through in full detail because it's being optimized for print (on paper).