RTF Excel output split sheet

Hi there

I beg for the help and advice from the experts for the next situation:

I have a rtf word file, I use to generate an Excel output file in a concurrent program. I neet to split sheets according to some argument, I do this addin the line <?xlsx-page-break-as-new-sheet?>

When I run the rtf file for creating an excel output using the Bi publisher complement (offline mode) I can see splitted sheet as I wish, I upload this rtf to the template and when I run the concurrent program, the excel output I get gives me all the results in only one sheet.