Access - how to generate new data under the current column

[toci]

Hi All,


I'm not sure is it the Title appropriate but hope so that you will understand my question.
So, this is some kind of data that I pull out from Access and queries that I have made but now I need another dataname (Column A - dataname) "diff" to put in column A and it should be (in Pivot Table it is Calculated item = wos-pred) the difference between "wos" - "pred". When I say difference, I mean on Column Jan, Feb, Mar....and so on.
Is there any way to calculate an make this in Access as if I use "Calculated Item" in Pivot Table it crashes my excel file because the excel file is very huge (this is just the part of data).
Thank you in advance.

[toci]

Any solution?

[davegri]

In Access make a query that includes all the fields, including a new calculated field with whatever name you want. Then export that query to Excel.