Using spreadsheetDatastore to import from spreadsheets with varying size

Hi,

So I would like to import a set of excelfiles data, structured in the same way but some with more amounts of data than the previous.

Basically what I would like is:

data = spreadsheetDatastore('folderDir',...
                            'Range','C11: *EndOfData*');

Where the data always starts at C11 but could end at G560, Y760 and so on, depending on the file.

Example data:

AnläggningsID          1408  9541
Adress                  DH48  DH50
Ort                  Uppsala  Uppsala
Nätområde          UPP  UPP
              Enhet  kWh  kWh
2015-10-01  01  5,52  0,00
2015-10-01  02  7,02  0,00
2015-10-01  03  6,39  0,00
2015-10-01  04  6,42  0,00
2015-10-01  05  8,28  0,00
2015-10-01  06  6,45  0,00
2015-10-01  07  7,95  0,00
2015-10-01  08  8,58  0,00
2015-10-01  09  9,33  0,00
2015-10-01  10  8,04  0,00
2015-10-01  11  7,65  0,00
2015-10-01  12  6,87  0,00

Sometimes the data would consist of more rows and one or more columns.

Is there an easy way to solve this with spreadsheetDatastore?