So, to start answering your first questions, they are not hidden. My spreadsheet suddenly starts with column C, yet when I put my cursor on a cell there and arrow left, I can see the contents of Column B and A, yet I'm unable to move further left to view these columns. I have hidden and unhidden columns before, even column A and that is not the issue. Why is Excel refusing to let me view those two columns?
I'm using Excel 2010 on Windows 7.
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