Hi Corion, Thank you for your suggestion. However, I might have left out some criteria though. 1. A,B,C,D.. are headers that I would need to have with their preceding values equated to. eg. A=undef,B=123-456 hh:mm, C=undef,D=789... 2. This would mean that the RHS of the headers would change over time keeping the LHS headers constant. How would you suggest that I overcome this, please? Thank you. Kind Regards, Cornelius

In reply to Re^2: How to split unique patterns by cornelius80
in thread How to split unique patterns by cornelius80

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