How to run through excelfile and group rows

Question

Hi

 

I have an excel file looking something like this:

 

Company	Year	Month	Day	Count
Comp1	2016	1	1	2
Comp1	2016	1	3	1
Comp1	2016	1	4	3
Comp1	2016	2	1	4
Comp1				10
Comp2	2016	1	1	1
Comp2	2016	1	2	3
Comp2	2016	1	3	5
Comp2	2016	2	2	2
Comp2	2016	3	3	3
Comp2	2016	3	4	1
Comp2				15
Comp3	2016	1	1	2
Comp3	2016	1	2	3
Comp3				5

 

What i want to do is run through this sheet and group rows according to Company so i get that little "+" or "-" button beside the group.

The number of rows for each company will not be the same every time this excel file is created, so i can't just say "make cell A1 to A5 a group". i have to do this dynamically. 

 

I have tried to google this but i can't find the answer. The problem could be that i simply just don't know how to write this problem in a search string for google.

 

Is this at all possible (i think it is) and how do i do this?

 

I hope some of you in here can help me.