public LessonsViewModel()
{
UrlFile Url = JsonConvert.DeserializeObject <UrlFile>(File.ReadAllText("JsonUrl/Url.json"));
_Read = new ExcelRead(Url.LessonsUrl, 1);
ListInfo = new ObservableCollection <Lessons>();
for (int i = 1; i <= 11; i++)
{
LoadLes(i);
}
_Read.CloseActin();
}