*** New file number 1
11 The first invoice.
We get this whole thing even though it exceeds the 50 character limit
because the conditional code requires an invoice marker before it will
start a new file.
*** New file number 2
11 Second
11 Third
11 Fourth invoice
11 Fifth invoice
This one is longer, but not excessive
*** New file number 3
11 Sixth: break before because limit hit in fifth
11 seventh and final