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CSV to Excel Converter – Convert CSV Files to XLSX

Convert CSV files to Excel spreadsheets instantly in your browser.

Upload

Preview

Upload a CSV to preview

Options

Details

EncodingUTF-8
Rows-
Columns-

About CSV to Excel Converter

This CSV to Excel Converter reads a .csv file in your browser, detects its text encoding (UTF-8, UTF-8 with BOM, or ISO-8859-1), and shows a preview of the parsed rows before you download anything. Set a custom sheet name and whether the first row is a header, then download a real .xlsx file with auto-sized columns - no upload, no conversion server involved.

Features

Drag & Drop Upload

Simply drag your CSV file onto the page or click to browse.

Encoding Detection

Automatically detects UTF-8, UTF-8 BOM, and ISO-8859-1 encodings.

Live Preview

See your data before converting to ensure it looks correct.

100% Private

All processing happens in your browser. Your data never leaves your device.

How to use CSV to Excel Converter

  1. 1

    Upload your CSV

    Drag a .csv file onto the upload area or click it to browse for a file.

  2. 2

    Check the detected encoding

    The tool auto-detects UTF-8, UTF-8 with BOM, or ISO-8859-1 and shows it in the Details panel.

  3. 3

    Preview the parsed data

    Review the first rows in the live preview table to confirm the columns look right.

  4. 4

    Set the sheet name and header row

    Name the Excel sheet and toggle whether the first row should be treated as a header.

  5. 5

    Download the Excel file

    Click Download Excel to save a .xlsx file with auto-sized columns.

Use cases

  • Converting exported CSV data into a spreadsheet for a client
  • Turning a database export into an Excel file for analysis
  • Preparing a log file as a spreadsheet before sharing it
  • Fixing encoding issues in a CSV before opening it in Excel

Privacy

Parsing and conversion both happen in your browser using JavaScript. Your CSV file is never uploaded to Art of Code or any other server.

Frequently asked questions

Yes, this CSV to Excel converter is 100% free with no hidden charges, no signup required, and no usage limits.
Absolutely. All conversion happens directly in your browser. Your files are never uploaded to any server, ensuring complete privacy.
There are no file size limits. Since processing happens in your browser, you can convert files of any size (limited only by your device's memory).
Yes, the tool auto-detects encoding including UTF-8, UTF-8 with BOM, and ISO-8859-1 (Latin-1) to ensure your data displays correctly.
Not yet - the parser currently reads comma-separated files only. If your file uses semicolons or tabs as the delimiter, the columns won't split correctly.

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Developed by MadMVP

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