One Sheet Xlsx — Download

For a custom dashboard or website, you need to generate the file in memory and trigger a browser download.

: The script copies the active sheet to a temporary spreadsheet and generates a download URL for that specific file in .xlsx format. Download one sheet xlsx

: Use libraries like SheetJS (xlsx) to convert JSON or HTML table data directly into an .xlsx blob. For a custom dashboard or website, you need

: Use the XlsxWriter or Pandas libraries to write a single dataframe to an in-memory buffer ( BytesIO ). For a custom dashboard or website

If you are doing this manually in Excel and want to save just one sheet as its own file: Download Button with Excel File - Using Streamlit