Importing from repeating field into sep records

[Pat]

In the 'learn it when you need it philosphy,' I've just tried importing from a repeating field (10 reps) to create new records into a another file. However, I see that new records (10 records) were created for every repeating field, whether or not there were any data in each repetition. Is there any way to create records for only those repetitions with data? Thanks!