Import-OPJ
You can just import some columns from the same worksheet in a Origin Project file(*.OPJ or *.ORG) or Workbook file (*.OGW).
To import specified column(s) from Origin project file.
The impOPJ dialog box allows more controls:
The OPJ File Name box lists all the files that have been chosen in the Origin Import dialog. Note that you can click the Browse button to the right to re-select your files.
Import Mode
This setting determines where the imported data are added:
Include
Specify the columns information you need to import with the data.