Best method of importing a large csv file with fields containing multiple values and sub-fields like paragraphs and field collections I exported an old Drupal 7 site using the Views data export module. Now I need to import this back into my new Drupal 7 site, but some of my fields contain multiple values and fields that have sub fields in them (field collections). 


What would be the best method of importing this? 
Do I have to write my own custom module using the migrate module or use feeds?
And how do I deal with importing data into a field collection or a field with multiple values?
You could try using Field Collection Feeds


  Provide feeds integration for field collection module.