Hello Ashes, and welcome. Please read
I want to ask a question of the Perl Monks. Where do I start? to learn about posting your questions more effectively.
Given the information you've provided, it's really hard to know whether you're dealing with the default worksheet names created when a new workbook is opened, or if you're creating these unwanted worksheets through some other method. It may help you to look through
RFC: Win32::OLE and Excel's RefreshAll that shows how to spin through all worksheets within a workbook checking a property in each.
After reading the posting guidelines linked above, please update your original question with a code example and I will try to be of further assistance.