Is there a way to convert continuos numbers from one column into a range? F.e. 1, 2, 3, 4, into 1 - 4? I know that it can be done with MIN and MAX, but how can it be done when there are numbers missing in the string, and I need ranges of continuos values? F.e 1, 2, 3, 5, 6, 7 into 1 - 3 and 5 - 7?