Intelligent Excel formula needed!

I OFFER €10 (PAYPAL) TO THE ONE WHO SOLVES THIS PROBLEM AND EXPLAINS IT TO ME IN DETAIL. NO JOKE!

Situation is the follwing:
I have a large spreadsheet with about 600 entries and 6 different colums.
This is supposed to be the "source" for the following sheets.
The 600 entries in the large spreadsheet are subdivided into different funds. I want Excel to summarize certain funds and link those to a new sheet but not only the funds but also the entries to the left and right hand side.
In detail:
Let's say there is "Fund 1 XXX 111" which has 7 accounts with all different information. Then there is "Fund 1 XXX 222", similar to the first one, with 8 accounts. Excel should now recognize this fund to be the same Fund as the first one and copy and link both of the funds INCLUDING all entries beside the "fund name" to a new sheet.
So whenever I copy a completly new "source" spreadsheet with 600, 700 or 800 entries, Excel should recognize the different funds, combine the most important ones and update the new information on the already existing sheets.

I'd appreciate it very much if any of you guys knew this.
Thanks a lot!