Below is a table that lists the provided programs (AR156.ocl36, AR156P.rpgle, AR135TC.clp, AR137A.ocl36, AR137A.rpg36, AR156.rpg36) in the rows and the tables (files) used in the columns. At the intersection of each program and table, a brief description explains how the program modifies, creates, or writes to that table. If a program does not interact with a table, the cell is marked with "N/A". The table is presented as a Markdown artifact, as per the requirements.

Program and Table Interaction Matrix

Program File	ARCONT	ARCUST	AREFTD	AREFTS	ARCUSP	EFTFILE	REPORT	GSCONT	ARDTGGC
AR156.ocl36	Reads for configuration data	Reads for customer data	Copies data to from source file	Clears and writes staging data	Reads for customer EFT data	Clears and writes NACHA file	N/A	N/A	Creates if needed
AR156P.rpgle	Chains to validate company number	N/A	N/A	N/A	N/A	N/A	N/A	Chains to retrieve default company number	N/A
AR135TC.clp	N/A	N/A	Checks existence of file	N/A	N/A	N/A	N/A	N/A	N/A
AR137A.ocl36	Reads for configuration data	Reads for customer data	Reads EFT data	Clears before processing	N/A	N/A	N/A	N/A	N/A
AR137A.rpg36	Chains for company settings	Chains for customer details	Reads EFT transaction data	Writes summarized EFT data	N/A	N/A	Generates EFT report	N/A	N/A
AR156.rpg36	Chains for company settings	Chains for customer details	N/A	Reads staging EFT data	Chains for EFT banking details	Writes NACHA-compliant file	Generates EFT audit report	N/A	N/A

Notes

• ARCONT: Company control file, read for configuration or validation.
• ARCUST: Customer master file, read for customer details and EFT participation status.
• AREFTD: EFT transaction data file, read or copied for processing.
• AREFTS: Staging file, cleared and written with summarized EFT data.
• ARCUSP: Customer-specific file, read for EFT banking details.
• EFTFILE: NACHA-compliant output file, cleared and written with EFT records.
• REPORT: Printer file for generating EFT audit reports.
• GSCONT: Control file, read for default company number.
• ARDTGGC: Dynamically created file for additional EFT data if needed.