Problem with a string

Hi,
I have a report (made with crystal reports) in wich I have embedded a xcelsius dashboard. I am passing string values to that dashboard using a crosstab (I am forced to do this that way due to programming and database limitations). Examples of those string would be :
15426, 1000, 34567, ...
In my xcelsius model, i then extract each of the values to separate columns and use them to populate a table. I use FIND and MID functions to do so. I then get the following
CELL A1 : 15426
CELL A2 : 1000
CELL A3 : 34567
CELL A4 : =A1A2A3+A4
When i hit preview, i get all the values in my table exept the cell A4 value... its like xcelsius cant make the calculations passed a certain level .....
I tried to copy/paste the string directly in my xcelsius model with same results...
Thanks for your help guys
PS: Sorry for my real bad english... I tried my best to explain my problem...

hi ,
i have also same problem, in my case alll value are string type, now i want to change them in numeric in excel but i am not getting correct answer.
i tried a lot method, but they did not work, then i multiply every field with 1 and then add them in this case its showing value result but some time the result is wrong. i can findout whats the problem.
can anyone suggest how to change value from string to numeric in excel or what should i do.
regards,
PIyushGahlot

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