That's adorable! CSV is notoriously loose, has a bajillion edge cases, differs wildly on region, and is not even really a format at all. Basically nobody follows RFC 4180, nor does anyone care about its existence.

The other day I had to fix a bug in our CSV importer; it turns out that when you install Excel, it changes the mimetype of CSV files from 'text/csv' to 'application/vnd-ms.excel' system wide. Wow! These sorts of shenanigans are never ending in the futile endeavour to support CSV.