This is a valid device tree node/property identifier "._+*#?-"

MS Office is turning to crap. I have to use it extensively because of my job and it never fails to give me grief. Today I wasted so much time because even though excel is loading a CSV file, it still changes values (like april25 to april-25, or 1.0 to 1) without informing the user or ability to undo or disable, because it thinks it is too smart. :(