// Return range data as grid of strings, where each object represents content of the cell in the grid.
internal static async Task <IList <string> > GetStringsRowDataAsync(this SheetsService sheetsService, string spreadsheetId, string rowRangeString)
{
IList <object> objectsRowData = await sheetsService.GetObjectsRowDataAsync(spreadsheetId, rowRangeString);
return(objectsRowData.Select(o => o?.ToString())?.ToList());
}