# Convert XLSX to CSV

> Convert XLSX to CSV online for free in seconds. Files are processed in a secure, isolated sandbox and deleted automatically. No sign-up, no watermarks.

URL: https://www.converterrr.com/xlsx-to-csv

- Runs in an isolated cloud sandbox with LibreOffice: files are deleted automatically, and the job uses cloud credits.
- Engines: LibreOffice (cloud).
- API: available. `POST /api/v1/jobs` with `"output_format": "csv"` (paid plans).
- More: [Spreadsheet converter](https://www.converterrr.com/spreadsheet-converter), [XLSX converter](https://www.converterrr.com/xlsx-converter), [Compress XLSX](https://www.converterrr.com/compress-xlsx).

## How to convert XLSX to CSV

1. **Add your XLSX files.** Drag and drop XLSX files onto the converter, paste them, or click to browse. You can add several at once.
2. **Choose CSV.** CSV is already selected. Open Options if you want to change quality, size or metadata.
3. **Convert.** Click Convert. Files are processed in a secure cloud sandbox and are usually ready in seconds.
4. **Download your CSV.** Download each CSV file, or everything at once as a ZIP.

## Good to know

- XLSX files are typically used for spreadsheets in Excel, Google Sheets and Numbers, while CSV is best for data exchange between spreadsheets, databases and apps.
- This conversion runs on LibreOffice in an isolated cloud sandbox. Files are encrypted in transit and deleted automatically.

## XLSX vs CSV

|  | XLSX | CSV |
| --- | --- | --- |
| Full name | Microsoft Excel Workbook | Comma-Separated Values |
| Type | Spreadsheet | Spreadsheet |
| Extensions | .xlsx | .csv |
| MIME type | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet | text/csv |
| Best for | spreadsheets in Excel, Google Sheets and Numbers | data exchange between spreadsheets, databases and apps |
| Properties | open standard | open standard |

**XLSX:** XLSX is the modern Excel workbook format with formulas, multiple sheets, charts and formatting.

**CSV:** CSV is plain-text tabular data with values separated by commas — the universal import/export format for spreadsheets and databases.

The other way around: [convert CSV to XLSX](https://www.converterrr.com/csv-to-xlsx).

## Related conversions

- [CSV to XLSX](https://www.converterrr.com/csv-to-xlsx) (cloud)
- [XLSX to PDF](https://www.converterrr.com/xlsx-to-pdf) (cloud)
- [XLS to CSV](https://www.converterrr.com/xls-to-csv) (cloud)
- [XLSX to HTML](https://www.converterrr.com/xlsx-to-html) (cloud)
- [ODS to CSV](https://www.converterrr.com/ods-to-csv) (cloud)
- [XLSX to XLS](https://www.converterrr.com/xlsx-to-xls) (cloud)
- [Numbers to CSV](https://www.converterrr.com/numbers-to-csv) (cloud)
- [XLSX to ODS](https://www.converterrr.com/xlsx-to-ods) (cloud)
- [TSV to CSV](https://www.converterrr.com/tsv-to-csv) (cloud)
- [XLSX to TSV](https://www.converterrr.com/xlsx-to-tsv) (cloud)

## Convert XLSX to other formats

[XLSX to PDF](https://www.converterrr.com/xlsx-to-pdf), [XLSX to HTML](https://www.converterrr.com/xlsx-to-html), [XLSX to XLS](https://www.converterrr.com/xlsx-to-xls), [XLSX to ODS](https://www.converterrr.com/xlsx-to-ods), [XLSX to TSV](https://www.converterrr.com/xlsx-to-tsv)

## Convert other formats to CSV

[XLS to CSV](https://www.converterrr.com/xls-to-csv), [ODS to CSV](https://www.converterrr.com/ods-to-csv), [Numbers to CSV](https://www.converterrr.com/numbers-to-csv), [TSV to CSV](https://www.converterrr.com/tsv-to-csv)

## XLSX to CSV: frequently asked questions

### How do I convert XLSX to CSV?

Drop your XLSX file onto the converter above, make sure CSV is selected, and click Convert. When it's done, download the CSV file — it usually takes a few seconds.

### Is it safe to convert XLSX to CSV here?

Yes. Your file is sent over an encrypted connection to an isolated sandbox that's created for your job only, then both the original and the result are deleted automatically.

### Is the XLSX to CSV converter free?

Yes. Cloud conversions like this one use credits, and you get free credits every day (3 without an account, 10 with a free account).

### Will converting XLSX to CSV reduce quality?

No — CSV preserves the content of your XLSX file as faithfully as the format allows.

### Can I convert multiple XLSX files at once?

Yes. Add up to 5 files at a time without an account, 10 with a free account and up to 500 on paid plans, then download them individually or as a single ZIP.

### Can I convert CSV back to XLSX?

Yes — use our CSV to XLSX converter. Note that converting back and forth between formats can't recover detail lost to lossy compression.