Looks like you can use the Variable Repeater Mode (CSV) to import your data:
If your repeating data is stored in a single column in your CSV file, and is separated by a separator character, use this option.
Then create a custom PHP function that would break up each value into the title and ID (Apple => 12343, etc.) and call your function from the text box:
[custom_function({feed_id[1]})]
As for the last part of actually creating a select box from titles and IDs – I don’t know how to do that. Hopefully someone can build on this answer. Also please share if you figured it out.