Convert XLSX to CSV
Convert XLSX spreadsheets to CSV format for universal compatibility. Secure offline processing with perfect data preservation. Get our app.
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All files are converted in the browser and do not leave your device. Use the app for offline conversions.
Supported Conversions
3,742 total conversions across all formats
Direct conversions transform files in one step.
Multi-stage conversions use intermediate formats for complex transformations.
Same format conversions allow you to alter compression, quality, or other settings.
Audio Formats
435 conversions available
Video Formats
914 conversions available
Image Formats
892 conversions available
Document Formats
1501 conversions available
Why Convert XLSX to CSV?
About XLSX Format
XLSX is Excel's feature-rich spreadsheet format that may have compatibility issues with certain systems, databases, and applications that only accept simple data formats.
Benefits of CSV Format
CSV is a universal plain-text format that stores tabular data. It's compatible with virtually all databases, programming languages, and data processing systems, making it ideal for data exchange and integration.
When you normally Google "xlsx to csv" ↓
Lost privacy with tools that send your files to unknown servers
Frustration when a file format isn't supported
Confusion dealing with complicated command-line tools
Risk of exposing sensitive files during conversions
Overwhelm from managing multiple tools for different file types
= Too many headaches with traditional file converters
🤕
There's an easier way
Great app! Finally something local to convert from anything into anything else, instead of every time going to google "convert x into y online".

Sergiy Horef (Mizyigres)
Convert Files Locally on Your Computer
Tired of uploading files to sketchy online converters? Fed up with command line tools?
- ✓3,093+ conversions for video, audio, image & documents
- ✓100% private - files never leave your computer
- ✓1,077+ users converting files offline
Desktop app for Mac, Windows & Linux
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Convert CSV files to XLSX spreadsheets securely offline. Our app maintains perfect data formatting with complete privacy. No cloud uploads.
