Probably not. EP4 will assume the mantle going forward.
My only issue with EP4 is that it favours CSV over tab-delimited, and that's why I don't use it. When product descriptions are full of commas, and possibly the odd quote mark, it risks throwing the load file into total disarray.
Tab-delimiting is far more robust and error-resistant, and makes for a much easier conversion from spreadsheet to txt format (one of Langer's original reasons for choosing it).
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