I would like to read a Google Spreadsheet like described in the Java Quickstart
https://developers.google.com/sheets/quickstart/java
The Quickstart explaines how to read data from a give range
.....
String range = "Class Data!A2:E";
ValueRange response = service.spreadsheets().values()
.get(spreadsheetId, range)
.execute();
List<List<Object>> values = response.getValues();
....
But I have the problem that I do not know the Range of the Spreadsheet. The number of columns can change. So how can I read for example all the data of the Sheet without knowing the range?
Regards
Michael