title: Validation framework for Excel Sheets
body: <p>I have an excel document which is used by the users to enter data according to the template and upload it back.
  Now i have many sheets in the workbook and each sheet have many cells with different validations.</p>
  
  <pre><code>Validations like:
  1. The cell data should be only numeric
  2. The cell data should be in a specific format xxx-xxx
  3. The cell data should be a date in yyyy-mm-dd format
  </code></pre>
  
  <p>etc...</p>
  
  <p>Is their a framework available which can do the job ? Like i just have to configure the data allowed in a cell(using regular expressions etc..) 
  and the framework will take care of the validations.</p>