How to download a single tab (gid method)
Open the tab you need to export
Click the specific tab inside your Google Sheet. The URL must show gid= for that tab.
Copy that tab’s URL
Copy the browser URL while that tab is active (it should look like #gid=123456789), then paste it in the tool above.
Pick a format and generate the link
Choose CSV, TSV, XLSX, ODS, PDF, HTML, or ZIP. The generated link exports only that single tab, not the whole workbook.