The file name format is different in BIP 10g and 11g

Hi Experts

As you know, in BIP 10.1.3.4.1, when export a report, the file name would like

<report name>.extension

but in BIP 11g, the file name format has been changed to

<report name>_<template name>.extension

e.g.

Report name : report1

template name: template1

export to excel file

in 10g, the file name is report1.xls

but in 11g, it is report1_template1.xls

i assume this is the behavior changing but i could not find any documents for it.

Can anyone help to clarify it?

And also is there a wey to change the format of the file name? e.g. back to the format in 10g or other customized.