or click to choose a file; pasted data below also works
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Convert comma-, tab-, semicolon-, or pipe-delimited text into a standard Excel XLSX workbook. Paste data or choose a local file, verify the preview, and download the result.
Quoted fields, embedded delimiters, and multiline values are parsed by a spreadsheet library rather than split as plain text. Cell content stays local in the browser.
Auto mode compares commas, tabs, semicolons, and pipes outside quoted fields. You can choose the delimiter explicitly when a file uses an unusual layout or contains only one column.
The result is a real XLSX workbook rather than a CSV file renamed with an Excel extension. Worksheet names are cleaned to meet Excel's 31-character naming rules.
The spreadsheet parser and converter run entirely in this browser. Files and pasted values are not uploaded to formatter.org.
Related data tools: CSV to Excel · Excel to CSV · CSV to JSON · JSON to CSV · CSV Formatter