title: How to delete/overwrite CSV file using google apps script?
body: <p>My google apps script imports a csv file [test.csv] into a new tab, manipulates some values, then saves the manipulated tab as a csv file [test.csv]. When it saves the new version, it simply makes another copy [test(1).csv]. I wish instead to overwrite the previous file (or delete the old one then export/write the new version.) Help please?</p>
  
  <p>I am using reference code from the <a href="https://developers.google.com/apps-script/articles/docslist_tutorial" rel="nofollow">Interacting With Docs List Tutorial</a></p>