SAP XI -> File Adapter

Experts,

I am looking for a way to use SAP XI File adapter, wherein, i can just pull a file from a source directory using XI and send it to the receiver , UNALTERED .

I just want to pass file as it is to the receiver using SAP XI /

I know we can do this, BUT can somebody tell me how ? Do we have to create Inbound / Outbound interfaces here OR can we just create communication channels

( receiver and sender ) with adapter type as 'FILE' ??? If yes, HOW ??

Would appreciate your reply .

Thanks,

Ashutosh