Problem with printer hole punching

[Ulodesk]

This may fall into the bottomless pit of printer software interpreting Excel files, but I thought I'd ask anyway.

I had three essentially identical Excel workbooks to print today, Each had a two-page initial worksheet in portrait, followed by multiple worksheets in landscape. All worksheets formatted to 8.5x11 (Letter in Excel 2013's size menu), all printing fine. I had determined through a test yesterday the proper printer setting configuration (large Xerox controlled via Fiery server) to get portrait and landscape to print and 3-hole punch in a single pass. However, today, one of the files would not allow me to punch holes, even when I ran just the landscape worksheets alone, no matter what setting I chose. I finally returned to the file, and, instead of selecting Letter for the landscape pages, selected 8.5x11 LEF (long edge forward), even though the other files' pages were all Letter. This allowed the hole punching to proceed.

Sometimes that just the way these things go, but I'm always curious. Anyone have any idea what other setting in the Excel file might be affecting this?