Converting between CSV and Excel formats is essential for data professionals, analysts, and anyone working with spreadsheet data. Our converter handles this seamlessly, preserving data integrity while giving you the flexibility to work with your preferred format.
Understanding CSV and Excel Formats
CSV (Comma-Separated Values) is a plain text format that's universally compatible but lacks formatting and multiple sheets. Excel's XLSX format is a rich format that supports formulas, formatting, charts, and multiple worksheets. Converting between them allows you to leverage the strengths of each format for different purposes.
Why Use Our Converter?
- Automatic data type detection (numbers, dates, text)
- Handles UTF-8 encoding for international characters
- Processes large files efficiently in your browser
- No file uploads - complete privacy guaranteed
- Preserves formatting where applicable
- Free with no usage limits or watermarks
How to Convert CSV to Excel
Upload Your File
Drag and drop your CSV file or click to browse. The tool accepts .csv, .txt, and .tsv files.
Preview Data
View your data in a table format to verify it was parsed correctly.
Configure Options
Set sheet name, choose whether to auto-format dates and numbers.
Download Excel
Click Convert and download your .xlsx file ready for Microsoft Excel or Google Sheets.
Key Features
Smart Data Types
Automatically converts numbers, dates, and percentages to Excel's native format.
Large File Support
Efficiently handles files with hundreds of thousands of rows.
Delimiter Detection
Auto-detects comma, semicolon, tab, or pipe delimiters in your CSV.
Multi-Sheet Creation
Split large CSVs into multiple sheets or combine multiple CSVs into one Excel file.
Encoding Support
Handles UTF-8, UTF-16, and Windows-1252 encoded files correctly.
Best Practices
- Use UTF-8 encoding for CSVs with special characters
- Check that dates are in a consistent format before converting
- Preview large files to ensure delimiter detection is correct
- For CSVs with commas in values, ensure proper quoting
- When converting Excel to CSV, note that formulas become values
- Multiple sheets in Excel become separate CSV files
Common Use Cases
Data Analysis
Import CSV exports into Excel for pivot tables, charts, and advanced analysis.
Database Export
Convert database CSV exports to Excel for sharing with non-technical users.
Report Generation
Transform raw CSV data into formatted Excel reports with proper styling.
Data Import
Convert Excel files to CSV for importing into databases or other systems.
Frequently Asked Questions
Are Excel formulas preserved when converting to CSV?
No, formulas are converted to their calculated values. Only the results are saved in CSV format.
What happens to multiple Excel sheets?
Each sheet can be exported as a separate CSV file, or you can choose a specific sheet to convert.
Can I convert Excel with images?
Our tool focuses on data conversion. Images and graphics in Excel are not included in CSV output.
How are dates handled?
Dates are converted to ISO format (YYYY-MM-DD) in CSV for maximum compatibility.
Ready to Get Started?
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Open CSV to Excel Converter