title: Save Excel spreadsheet as .csv with R?
body: <p>What is the simplest way to convert a large Excel spreadsheet with multiple worksheets into .CSV files in R?  </p>
  
  <p>Note that I've tested XLConnect and XLSX and found that my Excel sheets cause it to crash. So I'm specifically looking for a solution that does not use the XLConnect or XLSX package. </p>