CSV to Excel

Convert CSV files to Excel (XLSX) spreadsheets online for free. Instantly create formatted spreadsheets from your raw data.

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File is too large. The limit is 100 MB.

Supported: .csv (Max 100 MB)

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info About this tool
Transform raw CSV data into a formatted Excel spreadsheet (XLSX). This tool helps you view and edit large datasets properly in Microsoft Excel.

File size: XLSX output is typically larger than the CSV source due to Excel's XML-based format and metadata overhead.

Quality: All data is imported as text or numbers. Date parsing depends on the format in your CSV: ISO dates (YYYY-MM-DD) are recognized automatically.

format_list_numbered How to convert
  • 1
    Upload your CSV file.
  • 2
    Our engine parses the delimiters.
  • 3
    Download the generated .xlsx file.
help FAQ

My CSV uses semicolons instead of commas: will it work?

Standard comma-delimited CSVs are fully supported. Semicolon-delimited files (common in European Excel exports) may need a delimiter change before uploading.

Will my column headers be preserved?

Yes. The first row of your CSV becomes the header row in Excel, exactly as it appears in the source file.

Is there a row limit?

Excel supports up to 1,048,576 rows. Files within that limit convert fully. Very large CSVs may take a moment to process.
lightbulb Common use cases
  • check_circle Opening database exports or API responses in Excel for analysis
  • check_circle Sharing data with non-technical colleagues who prefer spreadsheets
  • check_circle Adding Excel formulas and charts to raw exported data
  • check_circle Preparing reports from CRM or analytics platform CSV exports
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