Spreadsheet Conversion
Convert CSV to XLSX
Use DropFile to convert CSV spreadsheet files into Excel spreadsheet output on Windows. The workflow is designed for quick drag-and-drop conversion without sending your file through a browser upload form.
Available for Windows 10 and Windows 11 on the Microsoft Store, and for iPhone & iPad on the App Store.
Convert CSV to XLSX
CSV and XLSX are common data formats. DropFile helps you reshape spreadsheets for Excel, reporting tools, web previews, databases, and lightweight data exchange.
CSV is a plain-text table format used by databases, spreadsheets, CRMs, and reporting tools. XLSX is the modern Excel workbook format for tables, formulas, sheets, and business data.
DropFile is a Windows desktop file converter, so supported conversion work happens on your machine instead of an online upload form.
- Drop the file onto DropFile and choose the XLSX output action.
- Conversion runs locally on your PC, with output saved to a folder you choose.
- One desktop app covers documents, spreadsheets, images, PDF, video, audio, and archives.
Format Comparison
CSV vs XLSX
| Format | Best For | Why Convert |
|---|---|---|
| CSV | Simple tables, easy import/export, broad app compatibility. | Keep the original source file when you need its native structure or compatibility. |
| XLSX | Multiple sheets, formulas, formatting, and Excel compatibility. | Create a version that is easier to share, open, publish, archive, or reuse in another workflow. |
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Questions & Answers
CSV to XLSX FAQ
How do I convert CSV to XLSX on Windows?
Install DropFile from the Microsoft Store, drag your CSV spreadsheet onto the DropFile window, and choose the XLSX output action. DropFile processes the file on your Windows PC and saves the new XLSX file to your chosen output folder.
Is converting CSV to XLSX private?
Yes. DropFile runs supported spreadsheet conversions locally on your machine, so your CSV file is not sent to an online converter just to produce XLSX output.
Will my data stay intact converting CSV to XLSX?
DropFile keeps your rows and columns when converting CSV to XLSX. XLSX is the modern Excel workbook format for tables, formulas, sheets, and business data.
What is the difference between CSV and XLSX?
CSV is a plain-text table format used by databases, spreadsheets, CRMs, and reporting tools. XLSX is the modern Excel workbook format for tables, formulas, sheets, and business data.