CSV → Excel (XLSX)
Convert CSV to Excel (XLSX)
Convert CSV (.csv) to Excel (XLSX) (.xlsx) right in your browser. Free and unlimited — your files never leave your device.
Drop a file — or click to browse
Drop a file anywhere, click to browse, or paste an image — files never leave your device.
Writes a single worksheet.
Need the other direction? Excel (XLSX) → CSV
The private way to turn CSV into Excel (XLSX)
Comma-separated values. Microsoft Excel spreadsheet. With Morphr, the whole conversion runs inside your browser tab using Morphr's own engine — your file is never uploaded to a server, queued, or stored. That makes it a safe choice for personal photos, scanned documents and anything you'd rather not hand to a third party.
Frequently asked questions
- Is it free to convert CSV to Excel (XLSX)?
- Yes — Morphr is completely free, with no limits, watermarks, or sign-up.
- Are my files uploaded to a server?
- No. The conversion runs entirely in your browser, so your CSV file never leaves your device.
- Will I lose any data converting to Excel (XLSX)?
- No — every row and value is preserved exactly; only the file format changes.
- Is there a file size limit?
- Because everything runs locally, there is no upload limit — the practical ceiling is your device’s available memory.