Garbled CSV in, readable CSV out. CSV and XLSX both ways.
🔒 This file never leaves your device — nothing is sent to a server
A CSV does not say which encoding it uses. Excel guesses the system code page, so UTF-8 files with accents or non-Latin text come out garbled. Saving with a UTF-8 BOM makes it open correctly in Excel 2007 or later, Numbers and Google Sheets.
Values are copied as text so ZIP codes, phone numbers and SKUs keep their leading zeros.
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No.
CSV has neither. Excel → CSV keeps calculated values only.