private static Task <(Dictionary <string, string[]>, string[], Dictionary <string, string[]>)> loadLexicalFieldAsync() { (Dictionary <string, string[]>, string[], Dictionary <string, string[]>)result; try { result = ExcelLoader.LoadLexicalField(Helpers.GetExecutingDirectoryPath() + @"\Data\ChampsLexicaux.xlsx"); } catch (Exception) { throw; } return(Task.FromResult(result)); }