However it gives me a warning message at the begining
That would be the filenames in you open calls. You need to use single quotes instead as the backslash is trying to escape the 'd' following it which is not what you want e.g 
open(IN, '<c:\doclist.chr') or die "Couldn't open file, $!";
open(OUT, '>c:\doclist.txt') or die "Couldn't open file, $!";

[download]
Also can I suggest a simplification to your while loop 
print OUT join '|', split /,/ while <IN>;

[download]
Now you're not limited to seven fields (although you can enforce this using the 3rd argument of split) and you've done it all on a single line, hurrah!
HTH

_________
broquaint

In reply to Re: Parsing a comma delimited file by broquaint
in thread Parsing a comma delimited file by Skyler99

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.