why should i use single quotes for application.run in excel?

i have this:

Application.Run ("'L:\database\lcmsmacro\macro1.xlsm开发者_C百科'!macro_name")  

why should i use the single quotes? does it not recognize the backslash?

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I believe it's for consistency.

Single quotes are necessary when the path contains spaces ot exclamation marks, so to make things more consistent and simple, the quotes are required every time.