Since your data file is a multi-column or interlaced multi-channel file, you will need to use the Advanced Button to import each channel. If you want to import all or multiple channels in one step, see the sections on Creating a DADiSP Header File and Using the Load Button.
Note that not all of DADiSP's import keywords are available in the default import header. If this is the case, then you will need to create a separate ASCII file for your header. See the sections on Creating a DADiSP Header File and Using the Load Button.
After you have edited the Advanced import parameters and closed the Advanced Import Parameters dialog box, click on the OK button to proceed with the import. You will see status messages displayed at the bottom of the screen while the data is being imported. Once imported, the Series will be available to load via the pull-down menus: File, Open, Series.