Excel window size at Open

I have an Excel file that holds my generic macros and it launches from XLStart folder. I have it set to less than full screen but not fully minimized. Whenever any other workbook is opened, it too, opens in less than full screen despite previously closing and saving it maximized. If I set my macro-holding file to full screen, everything else behaves the same. It seems to be dictating how the others open. I want my macro file to launch less than full screen but other workbooks to load full screen. Any ideas short of some VB code?