title: Gdata package perl issue
body: <p>I am attempting to follow this easy 2-minute video tutorial on importing an Excel spreadsheet into R as a data frame: <a href="http://www.screenr.com/QiN8" rel="noreferrer">http://www.screenr.com/QiN8</a></p>
  
  <p>I followed each step, including downloading and installing Strawberry Perl (32-bit) on my Win 7 PC, pointing R to my working directory, and entering the following command in R: </p>
  
  <pre><code>Spreadsheet &lt;- read.xls("targetspreadsheet.xls")
  </code></pre>
  
  <p>I receive this error: </p>
  
  <blockquote>
    <p>Error in findPerl(verbose = verbose) : 
      perl executable not found. Use perl= argument to specify the correct path.
    Error in file.exists(tfn) : invalid 'file' argument</p>
  </blockquote>
  
  <p>Update: </p>
  
  <p>I reset my machine and set the path to Perl:</p>
  
  <pre><code>perl &lt;- "C:/strawberry/perl/bin/perl.exe"
  </code></pre>
  
  <p>Then I entered this command:</p>
  
  <pre><code>DF &lt;- read.xls("spreadsheet.xls", perl = perl)
  </code></pre>
  
  <p>The command line returned this error:</p>
  
  <blockquote>
    <p>Error in xls2sep(xls, sheet, verbose = verbose, ..., method = method,  : 
      Intermediate file 'C:\Users\AEID\AppData\Local\Temp\RtmpoXMywa\file18e45ed513c.csv' missing!
    In addition: Warning message:
    running command '"C:\STRAWB~1\perl\bin\perl.exe" "C:/Users/AEID/Documents/R/win-library/2.15/gdata/perl/xls2csv.pl" "GFT_show_wip_report(42).xls" "C:\Users\AEID\AppData\Local\Temp\RtmpoXMywa\file18e45ed513c.csv" "1"' had status 2 
    Error in file.exists(tfn) : invalid 'file' argument</p>
  </blockquote>
  
  <p>What am I doing wrong? </p>
  
  <p>Thanks in advance for your help!</p>
  
  <p>AME</p>