You will be asked for Google authentication on the first log in.
5. Enter the
Email and click on
'Next.'

6.Enter the Password and click on Next.
7.
Enter a Name for the app.

8. Select your spreadsheet.
Spreadsheets will be shown only if you link your Google account with Google spreadsheets.
9. Enter the Number of Rows.
Google spreadsheet first row should contain Display Name, Picture URL, Job Title, Department, Quote, Start
Date etc. More details. Copy template from here.