Remote Sites settings allow users to access external or remote sites directly from Salesforce. You must be logged in as System Administrator to complete these tasks.
To access the sample Financial Accounts .csv file you must allow access from salesforce to google docs (this is the remote site).
From the main Salesforce window select Setup.

Navigate to Administration Setup > Security Controls > Remote Sites
- Click the New Remote Sites button

- Enter a Remote Site Name of 'Google Spreadsheets'
- Enter a Remote Site url of http://spreadsheets.google.com
- Enter a description (if desired)
- Click Save
