CSV Bulk Listing Importing help 101 please!

I’m in the process of setting up my first directory, using the Business Directory theme and want to import business listings, but I can’t find the sample csv file. The set up is different from the video tutorial, which seems to relate to the older versions of the themes.

Please could someone point me in the right direction! I’ve tried exporting a file to get the format, but the resulting file is not clear. I’ve looked at both the Premiumpress plugin and the Really Simple CSV Importer (recommended in another post) and the latter is far from straightforward.

Short of inputting all the data manually, I’m stuck and would really appreciate a helping hand!
Thanks!