Excel 2007 no longer takes command to change file

I did something accidentally to Excel 2007, but I do not know what I did.  All I know is I now do an easy command that I use frequently and it no longer works.  Simply, Format>Row>Row Height.  I put in "20" to change the row height from "14" and --it doesn't work!   I try to change it to 50 and -- it doesn't work.  I restart Excel --still doesn't work.  I restart the computer, open Excel, try it again and --it still doesn't work.  Created a new file--it still doesn't work.  What did I do and how can I fix it?
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Patrick BogersDatacenter platform engineer LindowsCommented:
Not sure what you did but you could try to repair your office in control panel\software\Office2007 repair option.

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ArtG2521Author Commented:
There was no repair option in control panel, but I inserted the original disk and it repaired it.
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