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Find and Replace Only 1st line in many csv files

Last Modified: 2018-12-03

I have over 100 CSV files that I need to pre-process before importing to SQL.  The files are too large to open in Excel.

What I'm trying to do is modify the first line (the header row) of each file to add double-quotes to the field terminators.

For example, given this header row:

replace | with "|" so the first row would be:

Notepad++ has a "find in files" feature that can use regex but I'm not sure how to linit it to the first line.

Any ideas would be greatly appreciated.  

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