I have some XML-files saved on Google Drive. I want to save their content into a spreadsheet. Google Apps Script should be the tool:
DriveApp locates files.
XmlService reads XML-files.
SpreadsheetApp stores the content.
I don't know how to read the content from a XML-file saved on Drive.
DriveApp gives a downloadUrl but GAS doesn't allow downloading files.
UrlFetchApp isn't authenticated.
It it impossible or is there a workaround?