Hi Rupali
From experience, having multiple reports in on workbook effects performance and hence it would be advisable not doing just that.
There is however a solution to the print issue. Have you tried the publication wizard? There are multiple options available to print including directly to the printer and to PDF. The PDF version looks very neat but you have to ensure that you define your print ranges in excel carefully. In prior versions like the Microsoft 7.5 platform, the margins were 1 on each side of the page you had to set up and save the report.
Once all the page print margins have been set up, the publication wizard will very efficiently print all the required reports very quickly with minimal user intervention.
Hope this was helpful.
Regards