Conversion sounds trivial until the details bite. Excel's Save As can silently re-encode text, strip the leading zeros off ZIP codes and account numbers, and turn long order IDs into scientific notation; online converters solve the format problem but reintroduce the privacy one by asking you to upload the file first; and neither gives you a clean, repeatable output you can wire into an automated process.
CSVPrune exports your cleaned data locally to the format the next step actually needs. Choose properly quoted UTF-8 CSV (with the original delimiter or a clean one), a structured JSON array suitable for an API or importer, or a formatted XLSX workbook for stakeholders who expect a spreadsheet — or copy the result straight to the clipboard. Throughout, values are treated as text unless you deliberately coerced them, so identifiers and leading zeros survive the round trip, and CSV output follows RFC-4180 quoting so it reads correctly everywhere. For regulated hand-offs, an audited export writes the converted file alongside a sidecar that records the before and after of every changed cell. And because conversion is just the final step of a pipeline, it can be saved into a recipe and run by batch or watch-folder automation — so "give me this as XLSX every week" stops being a manual chore and becomes part of the same one-click flow.
