Is CSV to Excel free to use?

Yes, CSV to Excel is completely free with no sign-up, no ads, and no usage limits. Use it as many times as you need.

Is my data safe when using CSV to Excel?

Absolutely. CSV to Excel runs entirely in your browser. Your data never leaves your device and is not sent to any server.

Does CSV to Excel work on mobile devices?

Yes. CSV to Excel is fully responsive and works on smartphones, tablets, and desktop browsers — no app installation required.

Do I need to create an account to use CSV to Excel?

No. CSV to Excel requires no account, no registration, and no login. Just open the tool and start using it immediately.

CSV to Excel

Convert CSV files to Excel spreadsheets online with delimiter detection and data preview. Free CSV to XLSX converter for easy export.

Document Tools Data / JSON

Instant results

Upload CSV File

Click to browse or drag & drop

Paste from Clipboard

Click to paste CSV data from clipboard

CSV Data

Options

Delimiter

Sheet Name

First row is header

About CSV to Excel Converter

The CSV to Excel converter transforms comma-separated value files into Microsoft Excel (.xlsx) spreadsheets directly in your browser. Upload a CSV file, paste CSV text, or read data from your clipboard, preview the parsed data in a table, and download a fully formatted Excel workbook.

Powered by the SheetJS (xlsx) library, this tool handles standard CSV formats including quoted fields, embedded commas, multi-line values, and various delimiters. No data leaves your device -- all processing happens client-side.

Features

Auto-Detect Delimiter

The tool automatically detects whether your CSV uses commas, semicolons, tabs, or pipes as delimiters. You can also override the detection manually.

Data Preview

Preview the first 20 rows of your parsed data in a formatted table before converting. Verify column alignment and header detection before downloading.

Custom Sheet Name

Set a custom sheet name for your Excel workbook instead of the default "Sheet1". Useful when organizing data across multiple files.

Multiple Input Methods

Upload a .csv file, paste text directly into the editor, or use the clipboard paste button for quick data import from any source.

Header Row Detection

Toggle whether the first row should be treated as column headers. Headers are displayed with bold formatting in the preview table.

Privacy First

Your CSV data is never uploaded to any server. The entire conversion process runs locally in your browser using JavaScript, keeping your data private and secure.

When to Convert CSV to Excel

Sharing Data with Non-Technical Users

Excel files are universally recognized and easier to open than CSV for most business users. Convert CSV exports from databases or APIs into Excel for colleagues who prefer spreadsheet interfaces.

Adding Formatting and Formulas

CSV files are plain text and cannot contain formatting, formulas, or charts. Converting to Excel lets you add cell formatting, conditional highlighting, pivot tables, and calculations.

Data Analysis and Visualization

Excel provides powerful built-in tools for sorting, filtering, charting, and analyzing data. Convert your CSV data to Excel as the first step in a data analysis workflow.

How to Use CSV to Excel

Open CSV to Excel

Navigate to CSV to Excel in your browser.

Upload your file

Click the upload area or drag and drop your file. It will be processed locally in your browser.

Configure settings

Adjust any available options such as quality, format, or output preferences.

Download the result

Once processing is complete, click Download to save the output file to your device.

Frequently Asked Questions

CSV to Excel is a free online document processing tool. Convert CSV files to Excel spreadsheets online with delimiter detection and data preview. Free CSV to XLSX converter for easy export.