Help with unsigned ints and how to store and retrieve data in them

Hi all
I have a problem where some data is being stored in an unsigned int
i dont really know much about them and am unsure on how to go about using the data.
The data being stored in them is row and column information in an excel spreadsheet.
The method is passed through 2 ints (column, row) and then a unsigned int is created out of these two values
the column is 8 bits and shift to the left hand byte (column & 0xFF <<24)
the row is 16 bits shifted to the right of the column (row & 0XFFFF <<8)
so if the column and row were 1,1 then the unsigned int would be
16777472
and for 1,2 then it would be 16777728
(i dont actually know how these numbers are formed, it would be great if someone can explain this too :) )
anyway now i have those unsigned int numbers does anyone know how i would go about taking that unsigned int and getting my int back from it
so take 16777728 and extracting column 1, row 2
any help would be appreciated

its not a 3rd party product, its been written by
another peep who is on holiday for 2 weeks so im
trying to sort something out but dont really
understand unsigned ints and stuff :(This is what is called a "third party product". It's not written by Sun, and it's not written by you.

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Help with unsigned ints and how to store and retrieve data in them

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