upload excel file save data to in sql different tables

var excel = ExcelFile.Load("Sample.xlsx");
var sheet = excel.Worksheets[0];
 
var table_a = sheet.CreateDataTable(
                new CreateDataTableOptions("A1", sheet.Rows.Count, 3)
                {
                    ColumnHeaders = true
                });
 
var table_b = sheet.CreateDataTable(
                new CreateDataTableOptions("D1", sheet.Rows.Count, 3)
                {
                    ColumnHeaders = true
                });
 
using (var conn = new SqlConnection("your-connection"))
{
    conn.Open();
    using (var bulkCopy = new SqlBulkCopy(conn))
    {
        bulkCopy.DestinationTableName = table_a.TableName;
        bulkCopy.WriteToServer(table_a);
 
        bulkCopy.DestinationTableName = table_b.TableName;
        bulkCopy.WriteToServer(table_b);
    }
}