What is this CSV to Excel converter?
A free, browser-based tool that turns CSV data into a real Excel (.xlsx) file. Paste or upload your CSV, check the live preview, and download the workbook. All processing happens locally in your browser, so your data is never uploaded and no Excel installation is needed.
How to use it
- Paste your CSV into the left panel, or upload a CSV file.
- Check the live table preview to confirm rows and columns were detected correctly.
- Press “Convert & download .xlsx” to save the Excel file.
How the data is mapped
- Each CSV record becomes one spreadsheet row.
- CSV quoting follows RFC 4180, so commas, quotes, and line breaks inside cells survive the round trip.
- Values that look like plain numbers are written as real Excel numbers; codes like 007 stay text so leading zeros survive.
Example
Input (CSV)
Name,Qty Apple,3 Orange,5
Output (Excel)
Name Qty Apple 3 Orange 5
CSV vs Excel at a glance
| Format | Type | Structure | Best for |
|---|---|---|---|
| CSV | Plain text | One row per line, comma-separated values | Imports/exports across almost any tool |
| Excel | Binary spreadsheet (.xlsx) | Sheets of rows × columns with typed cells | Editing in Excel or Google Sheets |
