We have already discussed the fact that comments are important. Any text that follows an apostrophe is considered a comment and is ignored by Excel. For example, the first line in the following code is a comment, as is everything following the apostrophe on the third line:

' Declare a string variable Dim WksName as String

WksName = Activesheet.Name ' Get name of active sheet

When debugging code, it is often useful to temporarily comment out lines of code so they will not execute. The lines can subsequently be uncommented to restore them to active duty. The CommentBlock and UncommentBlock buttons, which can be found on the Edit toolbar, will place or remove comment marks from each currently selected line of code and are very useful for commenting out several lines of code in one step. (Unfortunately, there are no keyboard shortcuts for these commands, but they can be added to a menu and given menu accelerator keys.)

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