The Properties Service of Google Apps Script is used by developers to store app configuration and user specific settings. The properties data is scoped to a specific user, or a specific project, and cannot be shared between different projects. … In some specific cases, we may want to give access to our store data to another user so they may build upon the existing configuration rather than having to build everything from scratch.
Amit Agarwal shares a useful snippet for letting users export and import data from PropertiesService. There are some nice touches in this solution including using the JavaScript File Reader API.
