XLSX to CSV Converter

Upload an Excel or OpenDocument spreadsheet and download CSV output for spreadsheets, databases, scripts, and reporting workflows.

Use the Excel to CSV converter when your source file is an XLSX, XLS, or ODS workbook.

No file selected

Files up to 1 GB. Spreadsheet contents are processed only for the conversion output.

Ready
Single sheet

A workbook with one worksheet downloads as a plain CSV file.

Multiple sheets

Each worksheet becomes its own CSV file inside one ZIP download.

Comma output

CSV files use comma delimiters, quoted fields, UTF-8, and line breaks compatible with common spreadsheet tools.

Excel exports

Turn workbook data into CSV files for import into databases, data tools, and automation scripts.

ODS compatible

OpenDocument spreadsheets from LibreOffice and other office suites use the same conversion path.

No output limits

The tool preserves workbook data in CSV form and keeps the normal 1 GB upload limit.

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Excel to CSV Converter

Convert a selected worksheet from XLSX, XLS, or ODS into plain CSV rows.

Input
One supported workbook plus worksheet and delimiter choices.
Output
CSV for the selected worksheet.
Real limitations
CSV cannot preserve formulas as formulas, formatting, charts, merged cells, multiple sheets, or workbook macros.
Privacy and data handling
one supported workbook plus worksheet and delimiter choices is uploaded to a compatible Convertr worker only after you start the operation. Processing is automated, and temporary source and result files are deleted automatically after processing rather than retained as permanent storage.

How to use this tool

  1. Choose one supported workbook plus worksheet and delimiter choices and wait for the page to validate it.
  2. Set the available output or inspection options, then start processing.
  3. Review the reported result and download CSV for the selected worksheet before the temporary link expires.

Common failure modes

Encrypted workbooks, unsupported formulas, corrupt archives, invalid sheet selection, or files beyond parser limits can fail.

Useful example

Upload sales.xlsx, choose the Q2 worksheet, and download its displayed cell values as UTF-8 CSV.