rovfs understandable confusion (wrt the setting of
$_) apart, you appear to be slightly confused as to what is going on:
You say I'm trying to read the file..., whereas your code clearly generates the file (file.txt) using data read, a row at a time, from an Oracle query.
Given this, it strikes me that the simplest solution to your formatting problem (which would, at the same time, solve the problem identified by roboticus) - is, IMO, to modify the query to force Oracle to change the default column separator - to '|' as required - in the report.
A user level that continues to overstate my experience :-))
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