Convert CSV files into editable Excel spreadsheets online.
Create a real XLSX workbook from CSV fields kept as literal text.
Choose a CSV file up to 25 MB, convert it, then download the XLSX result.
A value such as 00123 stays 00123, and =2+2 stays text rather than becoming an Excel formula.
Automatic numeric and date conversion is intentionally avoided. CSV dialects and text encoding vary; inspect separators, non-English text and row counts in the result. Formula execution is not added by the converter.
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