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Firstname Lastname
Open this spreadsheet
File -> Make a copy
Fill the spreadsheet with real data. It should look like this:
Next step is make this file Public; File -> Publish to the web -> Publish
Extract the Spreadsheet ID from the URL. It should look like this: 13J7bCeY26AaUGgW_2gOyLH5aulZFKQM_zwxMhfUJTGQ
Length: 2 min, 17 secs