Free browser-based spreadsheet tool

CSV to Excel Converter

Convert CSV data into a clean Excel workbook with preview, delimiter detection, header options, filters, frozen header row, and auto-fit columns.

Preview

0Rows
0Columns
CommaDelimiter

Upload or paste CSV data to preview rows.

Convert CSV to Excel XLSX online

CSV files are useful for exports, reports, inventory lists, bank statements, ecommerce data, analytics, and database records. Excel workbooks are easier to read, filter, share, print, and analyze.

This converter helps you turn raw CSV data into a cleaner Excel workbook. You can upload a CSV file or paste CSV text manually, preview the rows, choose the correct delimiter, and download an XLSX file that opens in Microsoft Excel, Google Sheets, LibreOffice, and other spreadsheet tools.

Delimiter detection

Automatically detects comma, semicolon, tab, and pipe-separated data.

Live preview

Check rows and columns before downloading the Excel file.

Excel-friendly output

Add filters, freeze the header row, style headers, and auto-fit columns.

Private conversion

The CSV is processed in your browser without requiring account creation.

Why convert CSV to Excel?

CSV is a plain-text format, which makes it lightweight and compatible with many systems. But plain CSV files do not store formatting, filters, frozen rows, column widths, workbook sheets, colors, or formulas. Excel files are more convenient when you need to review data, share reports with a team, print tables, or prepare records for accounting, inventory, HR, ecommerce, or office work.

Common CSV problems this tool helps with

Wrong columns

If a CSV opens in one column, the delimiter is usually wrong. Try comma, semicolon, tab, or pipe.

Messy exports

System exports from ERP, POS, Shopify, analytics, or bank portals often need cleaner Excel formatting.

Large tables

Filters and frozen headers make long CSV files easier to review after conversion.

Sharing reports

XLSX files are easier for many office users to open, filter, save, and reuse.

How to convert CSV to XLSX

  1. Upload your CSV file or paste CSV text into the converter.
  2. Let the tool auto-detect the delimiter, or choose comma, semicolon, tab, or pipe manually.
  3. Check the live preview to confirm that rows and columns are separated correctly.
  4. Choose Excel options such as header row, filters, frozen header, styled header, and auto-fit columns.
  5. Click Download XLSX and open the file in Excel or your preferred spreadsheet app.

CSV delimiter guide

A delimiter is the character used to separate values in each row. Many CSV files use commas, but some regions and software exports use semicolons. Tab-delimited files are common in reports copied from spreadsheets, and pipe-delimited files are often used in technical exports. If your preview looks wrong, changing the delimiter is usually the first fix.

Tips before downloading Excel

  • Keep the first row as a header if it contains column names.
  • Use filters when you want to sort or search large reports.
  • Freeze the header row for long spreadsheets.
  • Check date, number, and currency columns after opening the XLSX file.
  • Keep the original CSV file as a backup before editing the Excel version.

FAQ

Is this CSV to Excel converter free?

Yes. You can convert CSV data to XLSX without creating an account.

Does it support pasted CSV?

Yes. You can upload a file or paste CSV text manually.

Can it detect semicolon CSV files?

Yes. The tool can auto-detect common delimiters or let you select them manually.

Is my CSV uploaded to a server?

The conversion is designed to run in your browser using local file reading and XLSX generation.