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Could be to do with closed workbooks?
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big thaaaanks!<br />
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(btw, yes rory!)
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On sheet &quot;fetch&quot; in the yellow coloured cells I would like to calculate the total balances for the respective types (A, B, ...) from sheet &quot;modified&quot; with sumproduct. But I get the #NUM error. How to fix it? (I don't want to use sumif).<br />
<br />
thanks.<br />
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ee21.xls

On sheet "fetch" in the yellow coloured cells I would like to calculate the total balances for the respective types (A, B, ...) from sheet "modified" with sumproduct. But I get the #NUM error. How to fix it? (I don't want to use sumif).

thanks.

#NUM error with excel SUMPRODUCT formula

On sheet &quot;fetch&quot; in the yellow coloured cells I would like to calculate the total balances for the respective types (A, B, ...) from sheet &quot;modified&quot; with sumproduct. But I get the #NUM error. How to fix it? (I don&#39;t want to use sumif).

thanks.

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