How to read a batch of records from an EBCDIC file (Mainframe file format) incrementally using C# Dotnet

Question

Background:

We have a mainframe file that needs to be parsed and converted into ASCII for further processing. This mainframe file is of EBCIDC format. This mainframe file is "Variable Schema Variable Record length" in nature We have a dotnet parser which reads the records line by line and performs operations as developed

Scenario/Challenge:

We need the command/logic/directions to make the dotnet parser read/fetch batch or records from the source file incrementally.

For e.g -

Read records 1 - 5 from the file in iteration 1 Read records 6 - 10 from the file in iteration 2 Read records 11 - 15 from the file in iteration 3 . . . . EOF

Current Command - (to read the file line by line basis)