CSV to XLSX

Upload your CSV file (max 5MB) and download it in XLSX format.

About CSV to XLSX Conversion

This tool allows you to convert CSV (Comma-Separated Values) files to XLSX (Excel) format quickly and easily. The conversion is done entirely in your browser - no files are uploaded to any server.

Features

  • Local Processing: All conversion happens in your browser
  • Privacy: No data is sent to any server
  • Fast: Instant conversion for files up to 5MB
  • Simple: Just upload and download - no complex settings

How to Use

  1. Click the upload area or drag and drop your CSV file
  2. Wait for the file to be processed
  3. Click the "Download XLSX" button when it appears
  4. Find your converted file in your downloads folder

CSV File Requirements

  • Must be a valid CSV file with the .csv extension
  • File size must be under 5MB
  • Should have a header row with column names
  • Data should be properly comma-separated
  • Text containing commas should be properly quoted