Generate Random Alphanumeric String

AdvancedText Manipulation

I need a random 6-character code for user IDs.

The Formula

=TEXTJOIN("",,CHAR(RANDARRAY(6,,65,90,TRUE)))

How It Works

1

RANDARRAY generates 6 random numbers between 65 and 90 (ASCII for A-Z).

2

CHAR converts numbers to letters.

3

TEXTJOIN combines them into one string.

💡 Pro Tips

  • • Test the formula with sample data before applying to your entire dataset
  • • Use absolute references ($A$1) when copying formulas to prevent reference errors
  • • Consider error handling with IFERROR() for more robust formulas
  • • Document your formulas with comments for future reference

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Formula Details

Difficulty:Advanced
Category:Text Manipulation
Steps:3