Sounds like you want to remove leading zeroes, which appear to be defined as: one or more zeros that appear at the beginning of the line or following a dot or comma, and preceding a digit. This probably won't be the shortest or most elegant method, but it uses simple concepts and doesn't require any recent regex features: 

  
s/(^|[.,])0+(\d)/$1$2/g;

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Aaron B.
My Woefully Neglected Blog, where I occasionally mention Perl.

In reply to Re: Remove zero padding from excel mangled Ip addresses by aaron_baugher
in thread Remove zero padding from excel mangled Ip addresses by symgryph

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