Free converter

Excel to CSV and CSV to Excel converter

Convert between Excel (.xlsx) and CSV right in your browser, without uploading the file to any server. Useful for turning a budget or a bill of quantities into the format the next tool needs.

Processed in your browser, never uploadedConverts both ways: Excel → CSV and CSV → ExcelNo sign-up, no usage limit

Your file is processed in your browser. It's never uploaded to any server.

Formats it accepts

.xlsx.xls.csv

Who it's for

Technical officeAdministrationManagement

A budget or a bill of quantities almost never arrives in the format the next tool needs: someone sends an Excel file and you need a CSV to import it, or the other way around.

This converter reads the file in your own browser with the same library thousands of web tools use (SheetJS) and generates the converted file right away. The original file is never sent to any server — the conversion happens on your machine.

Upload the file, check the preview, and download the result. If the Excel file has several sheets, you can choose which one to convert.

How to use it without losing traceability

The recommended workflow is simple: keep the original file, process a copy and check the preview before downloading it. The converter performs one specific transformation, but it does not decide whether the data is complete, the units are correct or the result fits the system where you plan to import it.

What to check before using the file

Open the result and review several rows at the beginning, middle and end. Check sheet names, headers, separators, special characters and quantities. For technical or financial documents, keep the original beside the converted copy so you can explain which version was used and repeat the process if a difference appears.

Talk to Bloqbase about your case
Excel to CSV and CSV to Excel converter | BLOQBASE