PS/nVision - Converting Layouts from XLS to XLSX / XLSM

Hello,

We are converting our PS/nVision layouts from XLS to XLSX / XLSM. However, some of our layouts with VBA macro were already converted to XLSM.  We have hundreds of layouts created by different users and we cannot identify which one of these layouts were already converted to XLSM. When we converted all the layouts at the same time, we noticed that some of the layouts with VBA macros were converted to XLSX instead of XLSM and the excel macro associated with the layouts were removed. How can we identify the layouts with VBA macro which have laready been converted to