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The function will check that the expression consists of entirely alphanumeric characters. It takes the general form: 


Where expression can return a result of any type. 

The function will return TRUE (1) if the expression consists of entirely alphanumeric characters. The function will return FALSE (0) if the expression contains any characters, which are not alphanumeric.

International Mode

When the ISALNUM() function is used in International Mode the properties of each character is determined according to the Unicode Standard. 

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