CSV to Excel Converter
Convert CSV comma-separated files into formatted Microsoft Excel (.xlsx) workbooks. Preserves UTF-8 special characters, dates, numbers, and proper column widths.
Drag & drop your file here
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How to Convert CSV to XLSX
Upload CSV
Select the CSV file you want to turn into an Excel workbook.
Convert to XLSX
Our engine formats data types and generates the workbook.
Download Excel File
Open your formatted .xlsx spreadsheet in Excel or Sheets.
Key Features
Converts CSV into genuine Microsoft Excel (.xlsx) workbooks
Preserves UTF-8 international characters and symbols without garbling
Detects numbers, currencies, and dates automatically
Auto-adjusts column widths and sets styled header rows
Compatible with Excel 2007 through Microsoft 365 and Google Sheets
Batch convert large datasets with high performance
Common Use Cases
Frequently Asked Questions
Opening CSV directly in Excel often corrupts leading zeros, dates, and non-English characters. Converting to true XLSX prevents data mangling.
Yes, leading zeros in IDs and phone numbers are preserved.
Files are processed securely and deleted right after download.