Go to your LinkedIn Newsletter page and view the subscriber list.
Scroll down to load as many subscribers as needed.
Select and copy the HTML content of the subscriber list area (e.g., using browser's Inspect Element tool, find the <ul> or containing element and copy its outerHTML, or carefully select the visible list with Ctrl+A, Ctrl+C).
Paste the HTML content into the input area below (Ctrl+V).
Click "Process Data" to generate the table.
If nothing happens, click "View HTML" to check what was actually pasted.
Use "Copy Table" or "Download as CSV" buttons to export your data.