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DropFile Converter

Spreadsheets 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.

CSV input XLSX output 100% Local Windows 10 / 11
Download DropFile Now available on theMicrosoft Store Download on theApp Store
DropFile desktop widget for CSV to XLSX conversion

What This Conversion Does

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.

  • Drop the file onto DropFile and choose the XLSX output action.
  • Keep supported conversions on your local Windows PC instead of using a web upload workflow.
  • Use one desktop app for documents, spreadsheets, images, PDF, video, audio, and archives.
DropFile spreadsheets conversion options
DropFile settings and output folder options

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.

Private By Design

Local CSV to XLSX conversion

DropFile is built as a Windows desktop file converter. Supported conversion work happens on your machine, so your files are not sent through an online converter just to create a new format.

No browser upload workflow Output folder control Designed for everyday desktop files

Related DropFile Converters

More spreadsheets conversion pages

XLSX to CSV XLSX to JSON XLSX to HTML XLS to CSV XLS to JSON XLS to HTML CSV to JSON CSV to HTML

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 spreadsheets 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.

Get DropFile

Convert CSV to XLSX on Windows

Install DropFile from the Microsoft Store and use one local desktop utility for file conversion, media conversion, PDF tools, archive workflows, and more.

Download from Microsoft Store Download on theApp Store View DropFile Product Page

Available for Windows 10 and Windows 11 on the Microsoft Store, and for iPhone & iPad on the App Store.