G'day Harrison
This might help
Format column A as Text
A1 enter an 11 digit code (no leading zero)
B1 =IF(LEN(A1)=12,TEXT(A1,"0# ##### #####"),TEXT(A1,"# ##### #####"))
Now try a 12 digit code (any 1 digit leading number including zero)
Hope this is of some use.
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