Read large Excel cell content using ABAP class i_oi_spreadsheet

Hello,
I am trying to read an excel file using ABAP methods of interface i_oi_spreadsheet.
Unfortunetly some of my cells contain data that exceeds the 256 characters size.
To retrieve the content of the excel speadsheet, I am using method get_ranges_data.
Unfortunetly as the returned structure is of type soi_generic_table, the content of the cell is truncated to the maximum limit of 256.
Is there a way to read cells with large content ??
Thanks
Regards
Jean-Pierre

Same problem for me on ECC 6.0. Hope for a solution.

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