Map CSV data to fields in a Collection

I have a CSV file with one rowq of field names and one row of actual data

Field1Name, Field2Name, Field3Name
Field1Data, Field2Data, Field3Data

I'm using the Read CSV From File and told it to Use First Line as Field Names.

How do I get a data type from the single line of CSV text so I can map it to a Collection type?

Thanks!