I want to add a letter to the end of value and have it start over at "A" when the cell value changes. For example
My Column contains
BIR1510
BIR1522
BIR1524
BIR1524
BIR1524
BIR1524
BIR1532
BIR1532
BIR1533
I want this in another column
BIR1510A
BIR1522A
BIR1524A
BIR1524B
BIR1524C
BIR1524D
BIR1532A
BIR1532B
BIR1533A
Thanks for any help or sugestions
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