How to use it. 1  Open Excel & VBA editor 2  (+) Insert the code below under Sheet1. 3  Go back to Excel and select your desired range to fill with random & non-repeating numbers.  Execute the macro (+)
See also What are the rules about using an underscore in a C++ identifier; a lot of the same rules apply to both C and C++, though the embedded double-underscore rule is in C++ only, as mentioned at the top of this answer. Names with double leading underscores are reserved for use by the implementation.
1. underscore-give extra weight to (a communication); Her gesture emphasized her words. emphasise, underline, emphasize. accent, accentuate, emphasize, stress, punctuate, emphasise-to stress, single out as important; Dr. Jones emphasizes exercise in addition to a change in diet.