Excel to CSV Converter
Convert XLSX to CSV in your browser. Free, no signup. Conversion files are not uploaded to Format Convertly servers. Learn the formats, then convert when your workflow needs CSV.
Comma-separated values with a header row — opens in Excel, Sheets and Numbers.
Choose a file or drag and drop
Drop your Excel file here or
Choose file · Drag & drop · Public file link
- Processed on your device
- No conversion file stored on our servers
- Maximum file size: 100 MB
Conversion runs in your browser. Files are not uploaded to Format Convertly servers.
Processed on your device
No conversion file stored on our servers
Conversion Settings
Customize the output to match your needs.
Convert Quality
92%Quality slider applies when the target is JPG, WebP, or AVIF.
Output
Output options for this format are applied automatically during browser conversion. Drop your file above to begin.
Advanced settings
Additional Options
How to Convert Excel to CSV
Add your Excel
Drop a Excel file into the browser panel. Nothing is sent to a remote queue.
Confirm settings
Review optional quality/size settings, then confirm CSV as the output.
Download CSV
Convert locally and download the CSV file when processing finishes.
Why Convert Excel to CSV?
Private by design
Excel → CSV runs in your browser. Files are not uploaded to a remote conversion queue.
Ready for the next step
Convert when a site, editor, or teammate expects CSV instead of Excel.
Preserve detail
CSV: none or container. Typically lossless or lightly transformed for editing and archival use.
Wide compatibility
Excel is commonly used for Financial models and Operational trackers.
CSV vs XLSX
A quick side-by-side before you convert — deeper comparison lives on the full guide.
| Feature | Excel | CSV |
|---|---|---|
| Structure | Multiple sheets + objects | One flat table |
| Formulas | Yes | No |
| Formatting | Yes | No |
| Best for | Human analysis in Excel | Data interchange |
| Typical size | Larger | Very compact |
| Encoding pitfalls | Fewer for casual users | Common |
| Database import | Possible but heavier | Excellent |
Choose Excel when…
- Financial models
- Formatted reports
- Pivot-friendly analysis
- Multi-sheet workbooks
Choose CSV when…
- SaaS exports into pipelines
- Database COPY/import
- Git-friendly data dumps
- Values-only handoffs
What happens during document conversion?
CSV compatibility: Universal among spreadsheets, ETL tools, and programming languages Comma-separated values with a header row — opens in Excel, Sheets and Numbers.
Tip
Keep an original copy of your Excel file if you may need to reconvert later.
When should I use CSV?
CSV: CSV is the lingua franca for moving tabular data between spreadsheets, databases, and scripts. It carries values—not formatting or formulas—so pair it with XLSX when people need filters, charts, and styled sheets. Best for Exporting SaaS and billing reports and Database import/export.
CSV format guide →When should I keep Excel?
Keep Excel when you still need to edit or when it already matches your audience. XLSX is the business default for spreadsheets: multiple sheets, formulas, pivot-friendly data, and formatting. Use CSV when you only need raw values for import, and PDF when you need a non-editable snapshot of a report.
Excel format guide →Excel · CSV
Related converters Excel
Related converters CSV
Frequently Asked Questions
More on quality loss: conversion quality guides · problem-solution guides
Does converting Excel to CSV reduce quality?
Often no for lossless or remux-style paths. Quality drops when you re-encode with lossy settings, downscale, or flatten features like transparency.
Can you recover quality after converting?
Not from a lossy output alone. Return to the original master (or a better source). Converting to a lossless format does not resurrect discarded detail.
Where can I learn more about conversion quality?
Browse Format Convertly’s Quality guides for topics like whether conversion reduces quality, JPG↔PNG myths, WebP/MP3/MP4 tradeoffs, recovery limits, and generational loss — each links to the right converter.
Why is my Excel to CSV messy?
CSV only stores a plain table — no formulas, formatting, or multiple sheets. Export calculated values from one sheet via Excel → CSV and verify separators. Full guide: Why Is My Excel to CSV Messy?.
Where can I find more problem-solution guides?
Browse the Guides hub for long-tail fixes — HEIC won’t open, PNG too large, PDF not searchable, video too large, WebP upload failures, and more — each links to the right converter or tool.
What is a XLSX file?
XLSX is a Microsoft Excel Open XML workbook for spreadsheets, formulas, and charts. XLSX is the business default for spreadsheets: multiple sheets, formulas, pivot-friendly data, and formatting. Use CSV when you only need raw values for import, and PDF when you need a non-editable snapshot of a report.
Is XLSX lossy or lossless?
XLSX is typically lossless or non-destructive in common use (none or container).
What is a CSV file?
CSV is a plain-text table where each line is a row and fields are separated by commas (or related delimiters). CSV is the lingua franca for moving tabular data between spreadsheets, databases, and scripts. It carries values—not formatting or formulas—so pair it with XLSX when people need filters, charts, and styled sheets.
Related problems
Ready to Convert Your Files?
Excel to CSV privately in your browser.