private void Import_Click(object sender, EventArgs e)
        {
            var screen = new OpenFileDialog();

            screen.ShowDialog();

            GcUnit.DataSource = ExcelDataBase.OpenFile(screen.FileName);
        }
        private void Import_Click(object sender, EventArgs e)
        {
            //Open dialog to select the file to import
            var screen = new OpenFileDialog();

            screen.ShowDialog();

            GcSupplier.DataSource = ExcelDataBase.OpenFile(screen.FileName);
        }