We would like to have the ability for a user previewing an XD prototype to use interface components in the prototype that would cause data to be displayed in the prototype from a Google Sheet. This would allow us to test earlier in our product development cycle.

For an example of this requested feature, let's say we are prototyping a Google style text search application. The interface contains a simple search text input field and a button. The data being queried would exist in a Google Sheet.

The requested feature would allow the user testing the prototype to type in free text into the text input field and then click the button. Once the button was clicked, their search query string would be compared to the information contained in the Google Sheet. Matches that were found would then be displayed in a designated area in the prototype.