You have two main problems, how to parse the data into records and then how to generate html from those records.

I'll get you started with a simple parser. Not perfect, but a start.
Read about the CGI module (do a google search on CGI Perl) and adapt this to start generating html code.
Report back when you've made some attempts at that.

#!/usr/bin/perl -w
use strict;
use Data::Dump qw(pp);

my %record=();
while (<DATA>)
{
   if (/^Name/)
   {
      fill_in_record($_);
      process_record();
      %record=();
   }
}

sub fill_in_record
{
   my $line = shift;
   while ( (defined $line) and $line !~ /^\s*$/ ) #stop on next blank
                                                  #line or EOF
   {
      my ($id, $value) = split(' ',$line);
      chop $id;   #this deletes the trailing ':' character
      $record{$id} = $value;
      $line =<DATA>;
   }
}

sub process_record
{
   print "call cgi subroutine to process\n";
   print pp (\%record),"\n";
   print "\n";
}

=prints
call cgi subroutine to process
{ Name => "joe", age => 23, phone => 3423423 }

call cgi subroutine to process
{ Name => "sam", age => 23, phone => 4343433 }

call cgi subroutine to process
{ Name => "ram", ag => 45, phone => 34234232 }

=cut

__DATA__
some lines of code
blah blah
blah blah

Name: joe
age: 23
phone: 3423423

Name: sam
age: 23
phone: 4343433

Name: ram
age 45
phone: 34234232

some more lines..
blah blah..
[download]