Program to upload data from a tab-delimited file ...

I have to upload data from a tab-delimited file with following fields into database table(ZCBU) with same fields:

CBU (parent)

KUNNR (child)

ERDAT (effective from)

MANDT (client)

SFID (salesforce ID)

AEDAT (effective to)

AENAM (assigned by).

This file can be of type PC(txt) or UNIX.

plz tell me how to do this in both type of files