I have a bunch of cells ( about 150 ) in which I converted the formulas to text by replacing = with '= . When I'm done with data manipulation, I tried to convert those text back to formula with replacing '= to =. However, excel does not recognize the ' in front of the = sign any more for some reason. I think I had same issue before, but could not remember how it's solved other than fix them one by one. Anyone happen to know how to do with it? Thanks.<?xml:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" /><o></o>