Excel to CSV Converter
Export an Excel worksheet to CSV in your browser: pick the sheet you need, convert and download. No upload — your workbook never leaves your device.
One worksheet in, one clean CSV out
Plenty of systems — importers, databases, older tools, other people's scripts — want CSV while your data lives in an Excel workbook. The data converter on this page reads the workbook in your browser, lets you choose the worksheet, and exports its displayed values as a CSV file. No Office licence, no upload, no macro risk: the workbook is parsed locally and never transmitted.
Values, not formulas or formatting
Be clear about what a CSV export means: formulas are not recalculated, so what you get is the value each cell last displayed, and a formula without a cached result can export empty. Charts, colours and layout are discarded because CSV cannot hold them. Within those honest limits the export is careful — even protecting you on the way out, by prefixing formula-like text so the CSV cannot trigger formulas when reopened. Limits are a 5 MB file, 20,000 rows and 200,000 cells. Working from other formats? Try CSV to JSON, JSON to CSV or YAML to JSON.
Workbooks stay private
Budgets, payroll drafts and customer lists live in Excel files. Converting locally means that data is never uploaded to a conversion server.
Frequently asked questions
Which worksheet gets converted?
Your choice: after the workbook is read, a worksheet selector lets you pick exactly one sheet to export. Repeat the conversion for other sheets if you need them as separate CSV files.
What happens to formulas?
Only the worksheet's displayed values are exported — formulas are not calculated by this tool, and a formula cell whose cached result is missing can come out empty. Check the CSV before relying on it.
Is formatting preserved in the CSV?
No. CSV is plain text, so charts, colours, column widths and other formatting are discarded. What survives is the value of each cell in the selected sheet.
What are the file limits?
Workbooks up to 5 MB are accepted, and the conversion is limited to 20,000 rows and 200,000 cells. Bigger workbooks are better exported sheet by sheet from a spreadsheet application.
Why do formula-looking cells start with an apostrophe?
The exporter prefixes cells that a spreadsheet could interpret as a formula, so opening the CSV elsewhere cannot execute formulas hidden in your data. It is a safety measure, not a typo.
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