We have several forms in WordPress with over 50 columns and 190 entries if and when we get them into Excel. We can see the entries in the WordPress forms area. Unfortunately, when we go to Forms->Import/Export-Export Entries and export those forms, we get empty Excel files. The data's apparently in the tables, but it's not being written out. The Excel writing function works for other forms. See http://albertaventure.com/v250submissionform2013/ for an example of a form with unexportable data.