Here we would like to draw your attention to SKPR13 transaction code in SAP. As we know it is being used in the SAP BC-SRV (Basis Services / Communication Interfaces in Basis) component which is coming under BC module (BASIS).SKPR13 is a transaction code used for File Name Extensions in SAP.
It comes under the package SDOK.
Transaction SKPR13 technical data table
| Tcode | SKPR13 |
| Purpose | File Name Extensions |
| Module | BC |
| Component | BC-SRV |
| SAP Package | SDOK |
| Type | P |