in reply to Replace comma with tab

Comma is not special, no need to backslash it. Did you read the whole answer? Re: Replace ".." with "," It tells you what to do to replace all the matches.
لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

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