In other words, I want to substitute all <tabs/space> in the field that starts and ends with <double quotes> by <commas>.

That isn't what you've shown in your desired output where there are still whitespaces in that field. Since we don't know what you want, it's difficult to explain the method of getting there.

In reply to Re: How to substitute all tabs only in a specific field by hippo
in thread How to substitute all tabs only in a specific field by xuo

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