Convert CSV to XLSX
Turn CSV Data into a Real Excel Workbook
Need to use Convert CSV to XLSX right now?
Skips the usual open-Excel-import-resave workaround — paste CSV, download a real .xlsx file directly.
Features
- Runs entirely in your browser
- Privacy-first — your data is never uploaded
- Real-time, instant results
- 100% free, no sign-up required
- Works on desktop, tablet, and mobile
- No installation needed
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About Convert CSV to XLSX
CSV files are simple and universal, but they're not always what's actually needed — a colleague who wants to filter and format data expects an Excel file, not a plain-text CSV that Excel opens with default, un-styled formatting. Converting on demand solves that expectation gap.
This tool takes CSV data pasted directly into a text box and converts it into a real .xlsx workbook, downloadable immediately with a single click — no need to open Excel, import the CSV manually, and re-save, which is the usual multi-step workaround for this exact conversion.
The output is a standard single-sheet .xlsx workbook, opening correctly in Excel, Google Sheets, LibreOffice Calc, and Apple Numbers. This performs a straightforward data conversion — cell values transfer over, but there's no custom formatting, column widths, or formulas applied beyond what a plain CSV import produces.
How it works
- Paste your CSV data. Copy CSV data from anywhere and paste it into the text box.
- Download as .xlsx. Click the download button to get a ready-to-open Excel file.
- Open in any spreadsheet app. The file opens correctly in Excel, Google Sheets, or LibreOffice.
Examples
Simple CSV
Input
name,age Alice,30 Bob,25
Output
converted.xlsx — a two-column, two-row Excel workbook.