Convert CSV to Excel (XLSX)

Writes a single worksheet.

Need the other direction? Excel (XLSX) → CSV

From CSV data to Excel (XLSX)

CSV and Excel (XLSX) are two ways of writing the same structured data, so Morphr maps your records from one into the other with every field intact. It all happens on your device, which matters when the data is sensitive.

CSV and Excel (XLSX), explained

CSV stores tabular data as comma-separated rows of plain text. It is the lowest common denominator for spreadsheets and databases. XLSX is the modern Microsoft Excel workbook format, storing typed cells, formulas and multiple sheets.

Good to know

• • Your CSV files never leave your device — everything converts locally in the browser, so even confidential ones stay private.
• • Convert as many CSV files as you like at once; a batch comes back as a single ZIP.
• • Same data, different wrapper: the field names and values come through unchanged.
• • No sign-up, no watermark and no size limit beyond your device’s memory.

The private way to turn CSV into Excel (XLSX)

With Morphr, the whole conversion runs inside your browser tab using Morphr's own engine, so 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.

New to these formats? Read the guides on CSV and Excel (XLSX).

Frequently asked questions

How do I convert CSV to Excel (XLSX)?

Drop your CSV file onto the converter above (or click to browse), and Morphr converts it to Excel (XLSX) right in your browser. When it's done, click download — there's nothing to install and no account to create.

Will I lose any data converting to Excel (XLSX)?

No — every row and value is preserved exactly; only the file format changes.

Are my files uploaded to a server?

No. The conversion runs entirely in your browser, so your CSV file never leaves your device.