Attached is the excel file for mass user creation all you have to do is edit were needed.
i suggest you create a backup copy in case you accidentally erase some formula which is very easy to do even if you erase one quotation mark the file will not work for that user.
When you look at the formula you will know what i mean
Disclaimer
Use this file at your own risk as i cannot Guarantee it will work on your network, and i take no responsibility for anything that goes wrong.

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