title: How to get around 64k row limit in Excel
body: <p>I want to allow the user to operate on a table that might have as many as 400,000 rows, each of ~200 characters for a max total of 80MB of data. </p>
  
  <p>As a first approximation, I'm thinking to give the user a .csv file somehow to paste into a spreadsheet.  </p>
  
  <p>First of all, does it even make practical sense to try such a thing? (For example, could a spreadsheet function -- just one function -- operating on all those rows complete in a reasonable time, like 10 seconds?)</p>
  
  <p>If so, and given that MS Excel seems to impose a 64K row limit, what might be some of the techniques to give the user spreadsheet functionality on that giant table?</p>