CSV → Excel (XLSX)

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Select files: CSV Data

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Processing takes place in your browser; the selected files are not uploaded.

Supported conversion Processing takes place in your browser; the selected files are not uploaded.

About CSV to Excel (XLSX) conversion

What this conversion does

CSV: Tabular text separated by delimiters; quoting and separators matter. Excel (XLSX): Excel workbooks in XLSX format with cells, sheets and potentially formulas.

When to use Excel (XLSX)

  • When an app, device or website requires Excel (XLSX) instead of CSV.
  • When Excel (XLSX) is a better fit for your editing, sharing or storage workflow.

What to know

  • Processing takes place in your browser; the selected files are not uploaded.
  • Features that the target format cannot represent may be flattened, simplified or omitted.
  • Data types, formulas and styles are not stored. Choose the correct delimiter and character encoding.
  • Flat outputs use the first worksheet. Formulas and styles may be omitted.
  • Check column names, empty values and data types after conversion. Nested structures and spreadsheet formatting do not always fit the target format.