Here are two examples of how to export ODB++, HLDRC6.9 and Layer Stackup data in one go from Expedition.
The attached zip file contains two files plus a screenshot.
ODBppOut.vbs is a script that can be used to export the data from outside Expedition. The script will open Expedition, export all the data and close Expedition. Use it with mgcscript ODBppOut vbs. Usage details are in the vbs file.
ODB_HL_LS_out.efm is a form that can be opened from Expedition. The form has switches to allow you to specify what to export.