title: Reading and printing out an ODS file in browser using OpenTBS PHP
body: <p>I'm trying to work with an .ods file using PHP. The file essentially looks like this:</p>
  
  <pre>
  [empty cell] | title1 | title2 | title3
  18.12.2012   |   2.5  |    9.4 |    0.1
  19.12.2012   |   4.5  |    1.23|    0.2
  20.12.2012   |   12.4 |    21.1|    0.8
  21.12.2012   |   0.5  |    11.0|    0.6
  </pre>
  
  <p>What I need is to read the numbers, get the sums of rows and columns, and generate .odt files based on the info I get from this file.
  Multiple stackoverflow and other threads suggest that OpenTBS would be really sufficient for this purpose but I'm kind of new to the Template Engine concept and a little to PHP itself so I've been reading the docs for a several days and the only thing I seem to understand is how to merge and generate documents based on a template. 
  But can I read the data from the template or some other file I load to OpenTBS and process it? I suppose if I can read the data I can put it out in a browser using an HTML template, for example. And if it's not too much trouble I would really like to see some code examples of doing that, thanks.
  If OpenTBS cannot do that, what other library I should use for reading ODF(ODS) files?</p>