I can't type anything into excel
Hi,
Earlier this morning something happened (which I don't know how) while I was working on an excel worksheet, and that caused me not being able to write anything anymore, I can't even use the arrow keys to go up, down, let, and write. I only am able to paste something into the cells, nothing more.
I don't know if something is wrong with num pad / num lock or something, I couldn't find any solution searching on the ned,
I'm using Mac OS X Yosemite version 10.10, and excel 2010 is installed on the system
Any help is appreciated,