Doubts on Sum Mulitple Sheets

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Monday December 30, 2013
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December 30, 2013
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Hi All,

I have different kind of workbooks having records from A6to BB6 in this we can enter the details on daily basis sales .

One more Master excel i have with same kind of fields which above i said. I need to update the values of W6 from the sales file automated to master by using the unique name of sales person.

Can any one help on this....