FileType
1. Description
The FileType Derivation Type is used to verify whether the input file extension is correct, file exists and can be open.
2. Screen Configuration

CustId and AccNum values will be concatinated using '_' in AccNum output Field. Let's assume CustId="C1" and AccNum="A01", then it will give "C1_A01" in the output.
3. Required Fields
- name: Output Field Name.
- data_type: Output Field Type. Possible values are: "String".
- dervation
- derivation_type: The derivation type used is "FileType".
- req_fields
- extn: TXT/CSV/XLS/XLSX.
- sheet_name: To be provided only when extn is XLS/XLSX.