The batch we're developing requires a fixed width input file with different line definitions for each entity. Eg. the first line defines a family, the second and third line define family members of that family. The family record has different column definitions than the family member records.
I would like to create test cases in something human-readable (even if it has to be Excel) and then convert it to the input file format.
Any suggestions on how this can be done without too much hassle?