XML PUBLISHER report in Excel out put problem

Hi Experts,
I have developed one XML report which output type is EXCEL in Oracle Application.
I am getting some -ve value in the report so I need to do the trailing sign
Menace for example I got a value -8645 I need to display the value like (8645).
This functionality is working in PDF output but in EXCEL out put it is not working.
Could any body please help me on this..
Its Urgent .
Thanks in Advance.

Check this metalink notes, did you got any error..?
Note: 364547.1 - Troubleshooting Oracle XML Publisher For The Oracle E-Business Suite
Note: 359875.1 - Cannot View Xml Publisher Report Output In Excel Format
Note: 358296.1 - How To Produce Requests In Formats Of HTML, RTF, and Excel From XML Publisher
Note: 850685.1 - Wrong Output Format In Xml Publisher Output
Note: 727031.1 - XML Publisher Requests Always Get Defaulted to Output Format as PDF Whatever the Template Type is Set To
Note: 337343.1 - Unable to View Excel Output File Created by XML Publisher
Note: 401328.1 - Default Layout Format for XML Publisher Concurrent Request Is Always PDF
Re: XML Publisher Server on EBS