CSV to XLSX Converter

Convert CSV files to Excel format instantly with support for custom delimiters and headers. Perfect for data analysis and spreadsheet workflows.

💡 Tip: Upload CSV or paste data directly

Are you struggling with CSV to Excel conversion for data analysis?

Whether you need to import data into Excel, share spreadsheets with colleagues, or analyze CSV data, our CSV to XLSX converter from dpiconverter.online transforms your data with perfect formatting and structure.

Smart Detection

Automatically detects delimiters and data types for perfect conversion

Header Support

Preserves header rows and formats them properly in Excel

Ready for Excel

Download instantly as XLSX file compatible with all Excel versions

CSV to XLSX Converter Tool

Option 1: Upload CSV File
Upload a CSV or TXT file (Max: 50MB)
OR
Option 2: Paste CSV Data
CSV Format Examples:
With Headers:
Name,Age,City
John,25,New York
Jane,30,Los Angeles
Semicolon Separated:
Product;Price;Stock
Laptop;999.99;10
Mouse;29.99;50

Professional Tool

Professional CSV to Excel Conversion

Transform CSV data into professional Excel XLSX files with intelligent formatting, header recognition, and custom delimiter support. Essential for data analysis, reporting, spreadsheet creation, and ensuring compatibility with Microsoft Excel and other spreadsheet applications.

Our smart conversion system preserves data integrity while adding Excel-compatible formatting, automatic column sizing, and proper data type detection. Perfect for data migration, report generation, financial analysis, or any scenario requiring CSV data to be accessible in Excel format for advanced analysis and presentation.

Smart Data Conversion

CSV to Excel with intelligent formatting

Advanced Conversion Features

Flexible Delimiter Support

Handle comma, semicolon, tab, and custom delimiter-separated files with automatic data parsing and column detection for global compatibility.

Header Recognition

Automatically detect and format header rows with proper styling, bold text, and column organization for professional spreadsheet appearance.

Excel Compatibility

Generate XLSX files fully compatible with Microsoft Excel, Google Sheets, LibreOffice Calc, and other major spreadsheet applications.

Multiple Input Methods

Upload CSV files directly or paste CSV data as text for quick conversion, supporting both file-based and copy-paste workflows.

Data Analysis Applications

Business Reporting

Convert data exports from databases, CRM systems, or analytics platforms into Excel format for advanced analysis, charts, and business presentations.

Financial Analysis

Transform financial data, transaction records, and accounting exports into Excel spreadsheets for detailed financial modeling and analysis.

Data Migration

Migrate data between systems, prepare imports for Excel-based tools, or convert legacy data formats for modern spreadsheet applications.

CSV Format Support

Delimiter Options
  • Comma (,): Standard CSV format
  • Semicolon (;): European standard
  • Tab (\t): Tab-separated values
  • Custom: Any character delimiter
Excel Features
  • Headers: Bold formatting
  • Columns: Auto-sizing
  • Data Types: Automatic detection
  • Format: Professional layout
Excel Advantages
  • Advanced formulas
  • Charts and graphs
  • Data filtering
  • Professional presentation

Frequently Asked Questions

CSV is a simple text format with comma-separated values, while XLSX is Excel's rich format supporting formatting, formulas, charts, and multiple sheets. Converting to XLSX enables advanced Excel features and better presentation.

Select the appropriate delimiter option: comma for standard CSV, semicolon for European format, tab for TSV files, or specify a custom delimiter. The tool will automatically parse your data based on the chosen delimiter.

Yes! The converter preserves your data while adding Excel formatting like bold headers, auto-sized columns, and proper data type detection. The result is a professional Excel file ready for analysis.