Convert Excel to CSV without uploading
Clean UTF-8 CSV from any workbook — every sheet its own file, never sent anywhere.
Drop Excel files here or click to browse
.xlsx in, one CSV per sheet out. Nothing is uploaded.
The import-friendly format, minus the upload
Every CRM, database, mailing tool and script speaks CSV, which is why "export to CSV" is the first step of a hundred workflows. The data in question — customers, orders, inventory — is usually exactly what your company does not want passing through a random converter's server. This tool parses the workbook locally, exports calculated values with proper quoting, and encodes UTF-8 with a BOM so Turkish, German or any other characters survive the round trip into Excel and back.
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Frequently asked questions
How do I convert Excel to CSV?
Drop the .xlsx above; each sheet with content comes back as its own CSV file. The values are the calculated results, comma-separated and UTF-8 encoded, ready for any import tool.
What happens with multiple sheets?
CSV has no concept of sheets, so each one downloads as a separate file named workbook-SheetName.csv. Single-sheet workbooks produce a single clean file.
Are formulas exported?
CSV stores plain values, so you get the calculated results — the same numbers you see in Excel. That is what import systems expect.
Why does Excel-to-CSV via "Save As" sometimes break characters?
Older Excel versions export CSV in a legacy encoding that mangles accents and non-Latin text. This tool writes UTF-8 with a BOM, which Excel, Sheets and import scripts all read correctly.
Is my spreadsheet uploaded?
No. Parsing runs in your browser via WebAssembly-era JavaScript, and your data — often customer lists and financials — never leaves your device.