Do I need Microsoft Excel installed to convert?

No. Conversion runs in the browser and downloads a CSV you can open later in Excel, Sheets, or any text editor.

Can I export every sheet at once?

Not in this release. CSV holds one table, so export one visible worksheet at a time.

Which delimiters can I choose?

Comma, semicolon, tab, and pipe are supported. Comma is the default.

Are formulas recalculated before export?

No. Cached values are exported when available. Recalculate in Excel before saving if you need fresh results.

Where should I read next about Excel to CSV?

See /guides/excel-to-csv-without-uploading for privacy details and /guides/export-one-excel-sheet-to-csv for single-sheet tips. Open the tool at /tools/excel-to-csv when you are ready.

Illustration of an Excel workbook grid transforming into a CSV text file

File & Data

How to Convert Excel Spreadsheets to CSV in Your Browser

Excel workbooks are great for analysis, but many systems still expect a plain CSV export. Looty Tools Excel to CSV converts one visible worksheet to a downloadable CSV entirely in your browser. This guide covers the workflow, delimiter and BOM options, and the limits to plan around.

Ready to try the tool this guide describes?

Open Excel to CSV →

When Excel to CSV helps

Use this tool when you need a single-table export for imports, scripts, or apps that do not accept XLSX. CSV is not a multi-sheet format, so you export one worksheet per download.

The result is plain text. Charts, colors, macros, and formula expressions are not preserved.

Supported inputs and limits

Choose one .xlsx or .xls file up to 25 MB with at most 50 worksheets. CSV input is rejected. Hidden worksheets are excluded from selection.

Supported extensions: .xlsx and .xls
Maximum file size: 25 MB
Maximum worksheets: 50
One visible worksheet per export

How to convert on Looty Tools

The workbook is parsed once. Changing options regenerates CSV output without re-reading the file from disk.

Open Excel to CSV at /tools/excel-to-csv.
Choose or drop an XLSX or XLS workbook.
Select exactly one visible worksheet and review the preview.
Set delimiter, UTF-8 BOM, and blank-row options.
Select Convert to CSV to generate and download the file.

Options that matter

Delimiter choices are comma (default), semicolon, tab, and pipe. UTF-8 BOM is enabled by default so Excel often opens Unicode more reliably. Include blank rows keeps empty worksheet rows in the CSV when SheetJS supports that behavior.

Formula cells export cached calculated values when available. They are not recalculated, and formula text is not written to the CSV.

How to Convert Excel to CSV FAQ

Do I need Microsoft Excel installed to convert?: No. Conversion runs in the browser and downloads a CSV you can open later in Excel, Sheets, or any text editor.
Can I export every sheet at once?: Not in this release. CSV holds one table, so export one visible worksheet at a time.
Which delimiters can I choose?: Comma, semicolon, tab, and pipe are supported. Comma is the default.
Are formulas recalculated before export?: No. Cached values are exported when available. Recalculate in Excel before saving if you need fresh results.
Where should I read next about Excel to CSV?: See /guides/excel-to-csv-without-uploading for privacy details and /guides/export-one-excel-sheet-to-csv for single-sheet tips. Open the tool at /tools/excel-to-csv when you are ready.

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