excel filter rows by group

Question

How can we filter the following table, but grouped by project? So, my expectation is to add a filter, So that when I select Project A, all tasks in it will appear.

Answer 1

It looks like somebody is in need of something neat:-)
Press Ctrl+G , "Special", "Current region" and then Ctrl+G , "Special", "Blanks", for selecting all the blanks in your region, you'll get something like this:

As you see, all blanks are selected, and the top left has the focus (cell "A3" in my case). Inside that, you want to have the value of the cell just above (cell "A2" in my case), so you click inside the formula bar and you type there: =A2 and your press CTRL +ENTER (don't forget to press the "Control" button), and you'll get such a result:

From that, you can start filtering
Have fun:-)