It might be worth having a look at Text::CSV and/or Text::CSV_XS to convert your TSV/CSV. They say that they can cope with embedded newlines in fields -- how to do it is explained in the help.

In reply to Re: Convert XLSX to TSV and remove CRLF in cells by RichardK
in thread Convert XLSX to TSV and remove CRLF in cells by bulrush

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