Rest Adapter - Getting response message as test/csv format

Hello Experts,

We have a scenario where we are making a call to rest webservice from SAP PI and in response Rest webservice is sending response in the format of test/csv. WE need to transform the response test/csv and map it to the response structures of source(SAP) system.

SCenario -

Request message : ECC(Proxy) --> SAP PI --> Rest WebService(Concur)

Response message : Rest Webservice(Concur) -->SAP PI -->ECC (Response structure)

We are using Advantco Rest adapter to consume concur webservice(rest api).

Request you to provide any inputs on handling this.

Many Thanks

Narayanareddy B