Convert CSV to XLSX
Pick a source and destination format below, then upload your file.
Drag & drop a file here, or
Uploading auto-detects the source format above.
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About these formats
CSV is the universal spreadsheet exchange format -- plain-text rows and columns every tool can read, from Excel to databases to Python.
XLSX is Microsoft Excel's spreadsheet format -- formulas, multiple sheets, and formatting, and the default for business data.
How to convert csv to xlsx
- Upload or drag & drop your file into the converter above.
- Confirm the output format in the destination dropdown.
- Click Convert, then download your converted file.
Frequently asked questions
Is it free to convert CSV to XLSX?
Yes -- converting CSV to XLSX on digiutil is completely free. There's no signup, no watermark, and no install required.
How do I convert CSV to XLSX?
Upload your CSV file using the converter above, confirm XLSX as the output format, and click Convert. When the conversion finishes, a download button appears.
Is my CSV file safe?
Yes. Files are processed over an encrypted connection, never shared, and automatically deleted from the server shortly after conversion.
Do I need to install any software?
No -- the whole conversion happens in your browser and on our servers. It works on Windows, Mac, Linux, iPhone, and Android with nothing to install.