CSV → Excel
Turn plain CSV into a polished Excel workbook with styled headers, frozen panes, preserved leading zeros, and useful data types.
CSV inputpaste or upload
→Styleheaders · types
→Exportworkbook.xlsx
data.csv
● Live workbook preview
Results
Leading zeros protectedIDs such as 0026 remain text.
Numbers stay numericScores can be summed and averaged.
Long IDs protected16+ digit numbers avoid rounding.
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Generated entirely in your browser. The workbook contains real XLSX formatting and data types; your CSV is never uploaded.