Hi Abhishek,
There doesn't seem to be a direct way to achieve it. However, you can make use of 'Labels' to do the task. Following is one of the ways to add text to the top left cell:
fig = uifigure;
uit = uitable(fig,"Data",randi(100,10,3));
labelText = "Array";
label = uilabel(fig, 'Text', labelText);
label.FontSize = 14;
label.Position = [23 297 200 20];
Hope this helps.
