title: Save array to file
body: <p>I have a string array that is populated with thousands of entries. I am wanting the quickest way to save this data to disk and to also load it back up.</p>
  
  <p>Currently I am looping through the array and appending this data to a string and then saving this string. This takes a long time.</p>
  
  <p>What is the fastest/most efficient way to do this?</p>
  
  <p>Thanks</p>