Hi,

I tried to simple copy and paste your sample about Client side Excel library overview on a local environment.

I did different tests:

• referring your latest cdn files (as in the online sample)
• referring local files with loader (IG 2014.2 version)
• referring local files directly (ig 2014.2 version)

When I click on the export button and the whole procedure starts I always get the same error you can see here: Error. It is related to an uncaught error in infragistics.xml.js...

But, why is it strange? Because if I reclick, the whole procedure does not return that error again. So, I try to debug a little and I found the following line:

var workbook = new $.ig.excel.Workbook($.ig.excel.WorkbookFormat.excel97To2003);

to be the reason of this error.
$.ig.excel.WorkbookFormat.excel97To2003 is right (I can see it is a sort of enumerable property, and also changing it, it is always correctly found.
The  new $.ig.excel.Workbook(...) generates the error I described.
Working wiht Google Chrome developer tools console, I was able to see that:

1. var workbook = new $.ig.excel.Workbook($.ig.excel.WorkbookFormat.excel97To2003) generates error
2. var workbook = new $.ig.excel.Workbook($.ig.excel.WorkbookFormat.excel97To2003) done for the second time does not generates error