Welcome! I have to say first that I didn't come up with Excel Ninja, but I like it, so it stays. :-) I started doing work in Excel and VBA almost by accident, and now, spend 1/3 of my time at work on Excel based solutions. I wouldn't say I'm an expert, or even that great at it. But I enjoy doing it and have learned quite a bit along the way. Hopefully I can share some of that knowledge here, as well as ponder other ponderables such as my first bug report... Enjoy!
I have to say that for the most part I really like Excel 2007, but it has some bizarre bugs and missing functionality. Bug of the day - can't unhide columns. I hid some columns, then went back to unhide them and no luck. No worksheet or workbook protection, just hidden columns. I select the entire sheet, then right click > unhide, nothing. I select the columns to the left and right, same thing. So, I turn to my friend Google (slightly ironic that one of Microsoft's biggest competitors offers the best help when things go wrong!).
I found this link that solved my problem: "Perhaps the column isn't actually hidden, but its width is very small. Try selecting columns to left and right and use Format > Column > Width, putting something sensible (say 8)."
I already knew that hiding a column is the equivalent of setting it's width to zero, but why not be able to unhide? Who knows, but it worked. I've got my columns back, but I am still quite baffled.
Am I way off base here?