Welcome to the community
Assuming that you’re talking about creating a spreadsheet using the Spreadsheet File node, you can send it as an email attachment. After you create the spreadsheet (use Write to file operation), connect it to an email node - Send Email. Gmail, Outlook.
If you want to put the document as public, you will have to host it somewhere - eg. Dropbox, and make the link publicly available.
If you’re creating a spreadsheet using the Google Sheets node, then it is currently not possible share it with others via the node. However, you can use the Google Drive node, and update the sharing permissions of the file.
I hope this helps