Question 1

What Excel formats are supported?

Accepted Answer

The tool supports .xlsx and .xls files. It processes all worksheets in the workbook automatically and generates one CSV file per sheet.

Question 2

Is my Excel file uploaded anywhere?

Accepted Answer

No. The file is processed entirely in your browser using the SheetJS library. Nothing is uploaded, stored, or sent to any server.

Question 3

What is the difference between CSV and Excel?

Accepted Answer

CSV is a plain-text format where values are separated by commas, while Excel (.xlsx) is a binary format that supports formulas, formatting, charts, and multiple sheets. CSV files are simpler and more universally compatible. This browser-based tool converts Excel to CSV so your data works in any application.

Question 4

Can I convert multiple sheets at once?

Accepted Answer

Yes. The tool automatically detects all worksheets in your Excel workbook and generates a separate CSV file for each sheet. You can download them individually, all processed client-side in your browser without uploading your file.

Question 5

Will my formulas be preserved in CSV?

Accepted Answer

CSV files store only raw values, so formulas are converted to their calculated results during export. The formatting, cell references, and formula logic are not preserved. If you need to keep formulas, you should retain the original Excel file alongside the CSV output.

Question 6

What encoding does the CSV use?

Accepted Answer

The tool outputs CSV files in UTF-8 encoding, which supports international characters, accented letters, and special symbols. UTF-8 is the most widely compatible encoding and works across all modern spreadsheet applications. The conversion happens entirely in your browser.

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