Save any sheet of an Excel workbook as CSV, with clean dates
Processed in your browser. Nothing is uploaded. Updated on 24 Oct 2026.A workbook holds many sheets and a CSV holds one, so converting means choosing which. Pick the sheet and get clean output, with dates written as dates instead of as serial numbers. One workbook up to 50 MB, read entirely inside your browser.
Press Select an Excel file and choose the .xlsx workbook.
Pick the Sheet to export, and choose CSV or JSON under Save as.
Set the Delimiter, and turn on Add a byte-order mark if Excel will reopen the CSV.
Check the preview, then press Download CSV, or Download all as zip for every sheet; nothing is uploaded.
Excel to CSV saves a sheet of an .xlsx workbook as a CSV file, the plain comma-separated format that databases, accounting imports, mail-merge tools and scripts read. Choose a sheet, or convert every sheet at once into a zip of CSV files, and see the first 50 rows in a preview before you download.
Common uses: exporting a customer list for an email tool, uploading a price list to an online shop, feeding a sheet to a Python or R script, or preparing a bulk-upload file for a government or bank portal. Many European and some Indian systems want semicolons instead of commas, and some want tabs; pick the delimiter that the other side expects.
The workbook is read by code running in your browser, so it is never uploaded. Cells are written the way importers expect: dates as ISO 8601 (2024-01-15, with a time when there is one), numbers without thousands separators, TRUE and FALSE for checkboxes, and formulas as the value Excel last calculated and saved. A note tells you how many formulas there were, and warns when a file was never recalculated so a result is missing. Merged cells keep their value in the first cell. Files up to 50 MB.
Old binary .xls files are not supported; open them in Excel, Google Sheets or LibreOffice, save as .xlsx and add them again. Turn on the byte-order mark if the CSV will be reopened in Excel and contains accents or the rupee sign. Going the other way, CSV to Excel builds a proper .xlsx from CSV files.
Drop the .xlsx file on the page, pick the sheet, choose comma, semicolon or tab, and click Download CSV. To convert every sheet, click Download all as zip. No signup and no upload; the workbook is read in your browser.
Yes. CSV holds one table, so each sheet becomes its own CSV file named after the workbook and the sheet, and all of them come in one zip. Hidden sheets are listed too and marked as hidden, so nothing is lost by accident.
Dates are written in ISO 8601, year-month-day, because that is the one format every database and import screen reads the same way. A regional format such as 15/01/2024 can be read as 15 January or as an invalid month depending on the program.
CSV stores values, not formulas, so each formula cell is written as the result Excel last calculated and saved in the file. If a file was produced by software that never calculated it, those results are missing; open it in Excel, save, and convert again.
No. The old binary .xls format from Excel 97 to 2003 is not supported. Open the file in Excel, Google Sheets or LibreOffice, choose Save as .xlsx, and add the new file. Many bank .xls downloads are really web pages; saving them as .xlsx fixes those too.
.xlsx files up to 50 MB, one workbook at a time, and up to five million cells per workbook. Charts, images and formatting are not part of CSV and are left out. The preview shows the first 50 rows; the download always has every row.
Still stuck? Ask about Excel to CSV and anybody who knows can answer. No account needed.
Also works as: XLSX to CSV · Excel to JSON.
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