// 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());
        }