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Statistics appear after formatting
Parses CSV with an auto-detected delimiter and re-outputs it in a consistent, comma-separated format.
The service tries to detect the delimiter (comma, semicolon, tab, |) from the first part of the table using csv.Sniffer, so a semicolon-delimited Excel export can be normalized straight to comma-separated CSV.
Formatting also re-validates the headers: an empty column name or a duplicate raises a clear error instead of silently losing data, and the "A-Z" option can sort the columns by name.