Group rows and sum the last column - excel

Question

My original data looks like this:
I want my data to be transformed into:
Is there any way that we can do this without using pivot/subtotals. The reason why I am against pivot/subtotals is because i want to merge this data with some other data and do some calculations. VBA holds good too.
Any ideas please? I do not want the entire solution here, just suggest me some idea to proceed. I did a bit of research and all those were just the pointers to Pivot/Subtotals.

Answer 1

What have you tried? Please share your code/research.
For the "Total Effort" try:
=SUM(IF(B$2:B$9=G2;D$2:D$9))
And hit CTRL+SHIFT+ENTER when editing the cell value. Then drag it down.
Where "G2" is the "Name" value. "B2:B9" is the "Name" column and "D2:D9" is the "Total Effort" column.
Other columns:
To get the other columns you need to get the unique values. Try this for the ID column (assuming you want the unique IDs in Column F):
=INDEX($A$2:$A$9;MATCH(0;INDEX(COUNTIF($F$1:F1;$A$2:$A$9);0;0);0))
And hit CTRL+SHIFT+ENTER when editing the cell value. Then drag it down until you get #N/A values.
Where "A2:A9" is the "ID" column. "F1:F1" is the new column with the unique "ID".

Answer 2

I do this all the time for sundy data munging, you can connect to the workbook using ADO and run a SQL groupby statement on the sheet.
If you don't want to use VBA then you can do the same thing with microsoft query, though its a bit clunky using Data> from other sources > From microsoft query (data source = excel file).
For an easier query builder you could just import your table into Access and run a groupby query there, then copy paste it back.