Format Numbers in Query Text Field

[doma23]

I have a field in a query that contains numbers and text (text field):

C/R: IIf([Revenues]<=0;"n/m";[Costs]/[Revenues])

I need to export this query to Excel in a number format, so I can easily manipulate the data later.
If I put null instead of "n/m" it works nicely because it remains the number format, but I need to automatize my application, so I need to have "n/m" in these fields.

I know it can be done with Excel Automation, but it's rather complicated, is there any other way?

[jimatqsi]

@doma23
I did something like this recently. I think the solution for me was to put some code in Access to format the cell after I knew what the value was. There was something less than spectacular about the result, I forget now exactly what ... I think it had something to do with the the Excel sheet launching automatically and being locked for update until I closed the Access program. But I found I could apply format changes to each cell, so I was happy.

Jim