VBA - Generating Random Characters In Cell With Format Of Yymmdd / Randcharacters / Numbers

Mar 29, 2014

I would like to ask if there's a way to generate a random 4 characters in one cell and the specific random 4 characters that has been generated will be copied until the last cell of my preferred choice?

The format that I want is that:

yymmdd / random 4 characters that has been generated / 4 numbers that will increment sequentially

For example:
in A1: 140330QWER0001
in A2: 140330QWER0002
in A3: 140330QWER0003

But here's the catch, the file that I am using when closed then opened again will generate another random 4 characters with the same format. If i opened this file tomorrow:

for example the date for tomorrow is March 31, 2014, the file will do:

in A1: 140331TYUI0001
in A2: 140331TYUI0002
in A3: 140331TYUI0003

I tried to record it, the Rand() function when copied will generate another 4 characters.

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