If you have a multi-column or an interlaced multi-channel data file and want to import one or multiple series, use the Advanced Button in the Import Data dialog box. Click on the button, and the Advanced Import Parameters dialog box will appear.
Using the Advanced Import Parameters dialog box, each column or channel in the multi-column (multi-channel) data file can be imported individually. If you want to import all (or multiple) columns in one step, you will need to create a DADiSP header file, and indicate those columns which you are interested in importing. See the sections on Creating a DADiSP Header File and Using the Load Button.