Convert CSV to Excel
Convert CSV files to Excel XLSX with proper numbers and Unicode text. Free, no upload.
- Upload
- Options
- Download
- ✓ 100% free
- ✓ No sign-up
- ✓ No limits
- 🔒 Files never leave your device
How to: CSV to Excel
- Select CSV files.
- Keep Excel (XLSX) selected.
- Download.
CSV files often open in Excel with broken accents or numbers formatted as text. Converting to XLSX gives a proper spreadsheet with correct numbers and Unicode text.
Common uses
- Share data as a proper Excel file.
- Fix encoding problems with accents and non-Latin text.
- Prepare reports for colleagues.
Tips for best results
- Check date columns – formats vary by region.
Why open CSV via XLSX
When Excel opens a CSV directly, it guesses formats: leading zeros in postcodes or phone numbers can disappear, long ID numbers turn into scientific notation and accented characters may be garbled. Converting to XLSX first stores proper text and numbers so the data looks right.
Next steps
Once in XLSX you can add filters, formulas, charts and pivot tables, or share the file with colleagues who expect a spreadsheet rather than raw text.
Why use FreePDF for CSV to Excel?
| FreePDF | Typical upload-based sites | |
|---|---|---|
| Files uploaded to a server | No – processed on your device | Yes |
| Sign-up required | Never | Often for bigger jobs |
| Hourly / daily task limits | None | Common on free plans |
| Watermark on output | Never | Sometimes |
| Works offline after loading | Yes, for most tools | No |
Frequently asked questions
Are leading zeros kept?
Yes, values that look like codes are kept as text.
Which delimiter is used?
Commas, semicolons and tabs are detected automatically.
Is CSV to Excel really free?
Yes. Every tool on FreePDF is 100% free with no file limits, no sign-up and no watermarks. The site is supported by unobtrusive ads.
Are my files uploaded to a server?
No. FreePDF processes your files directly in your browser using JavaScript. Your documents never leave your device, so they stay completely private.
Does it work on mobile?
Yes. FreePDF works in any modern browser on Android, iPhone, iPad, Windows, Mac and Linux.