I have a workbook open and almost all the icons in the menu system are disabled. The only ones open are some on the Insert menu/tab and the 3 icons on the Nuance PDF tab. i can enter characters on the different sheets, and delete characters anywhere but I cannot delete lines, print, save, etc. It's the same for all pages of this 12-sheet workbook.
The critical problem is that I cannot save it normally, or to another name. I have not used protection on this workbook and it does not say read-only, nor does it behave that way.
I use Excel a lot and I've never seen this behavior.