Try to copy paste from excel file directly to ReactDataGrid, the onPaste Event is not getting triggered immediately. It is working only after doing a copy within the grid.
<ReactDataGrid columns={columns}
rows={sortedRows}
defaultColumnOptions={{
sortable: true,
resizable: true
}}
rowKeyGetter={rowKeyGetter}
selectedRows={selectedRows}
onSelectedRowsChange={setSelectedRows}
onRowsChange={setRows}
sortColumns={sortColumns}
onSortColumnsChange={setSortColumns}
onPaste={**onPaste**}
/>