Hi Luigi,

There's no way to do this directly. You can load an Excel file into a Workbook object, but the grid can only bind to an IBindingList or IList and the Workbook doesn't qualify. There's really no way the grid can interpret an Excel file, since the file is not necessarily homogeneous - it could contain multiple worksheet and doesn't have data type information for each column, nor column headers, etc.

So you would have to copy the data from the Excel Workbook into something the grid can deal with like an UltraDataSource, DataTable, BindingList<T>, etc.