As a rule, plowshareSolutions does not collect, store or share any user data. The Calendar Data Extractor Add-On does need some access in order to function. Details as follows:
Access of user data: the Add-On needs access to the spreadsheet that is active when you run the Add-On. It also has access to the data of any Calendars for which you extract data.
Use of User Data: the Add-On extracts data for specified calendars, formats it and inserts it into a tab in the active Spreadsheet.
Storage of User Data: the Add-On does not store any calendar data after the extraction is complete. All user data remains within the user's account.
Sharing of User Data: the Add-On does not share any data with any third parties.