The External Topics tab displays a list of all external links in your project. External links include:
URLs (intranet addresses and Web pages)
Links to HTML topics in other compiled Microsoft HTML Help projects (.CHM files)
FTP site addresses
Newsgroup addresses
Email addresses
Save As: Saves (exports) the data in Rich Text Format (.RTF) or text-only format (.TXT) to the drive/folder you specify.
Print: Prints the data on your default printer.
Copy: Copies the data to the Windows Clipboard so you can paste it into another file such as a Word document or Excel spreadsheet.
Mail To: Opens your email program so you can send the data to other people.