I have 2 csv files. One has data structure and the other has data.Need to convert into 3 data frames

Question

The data structure csv file looks like this:
RecordType,FieldNumber,FieldName
T1,1,Column_T1A
T1,2,Column_T1B
T1,3,Column_T1C
T2,1,Column_T2A
T2,2,