What do I need for LibreOffice to run my Excel Macros?

Hi,
My owner would like to implement LibreOffice in our small Tool and Die Company instead of using Excel.
I have a Excel macro that determines our On Time Delivery. In this macro it copies data from a couple of excel files into one file to crunch the data. When I open up the file in LibreOffice the macro does not work. When I try to understand the macros in LibreOffice, the language is completely different than the Macro language in excel.
My Options are set to LibreOffice-Advanced “Use a Java runtim enviroment” Vendor Oracle Corpation.
Is this correct for running my Excel Macros?
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It did not help. I placed Option VBASupport 1 and Option Compatible in the front of the Macro. (Option VBA Support 1 was already there.) The maro runs up to " Windows(“Data1.xls”).Activate" and an error message comes up "BASIC runtime error. ‘1’ Type:com.sun.star.container. NosuchElementException Message.

A comment here:

I’m learning how to use this web site. I placed my comment in my Question. I realized that I should have placed it here. I also created a new question asking why “Windows(“Data1.xls”).Activate does not work. For your answer, it did not help. I placed Option VBASupport 1 and Option Compatible in the front of the Macro. (Option VBA Support 1 was already there.) The maro runs up to " Windows(“Data1.xls”).Activate” and an error message comes up "BASIC runtime error. ‘1’ Type:com.sun.star.container. NosuchElementException Message.

It did not help. I placed Option VBASupport 1 and Option Compatible in the front of the Macro. (Option VBA Support 1 was already there.) The maro runs up to " Windows(“Data1.xls”).Activate" and an error message comes up "BASIC runtime error. ‘1’ Type:com.sun.star.container. NosuchElementException Message.