I am struggling to find where to start w.r.t my following problem.
In SFDC reports, there is an "export details" button to export a user chosen report into csv or xls formats. I want to modify this xls file (for example, encrypt it) before user downloads it. I guess I can achieve this using Apex triggers. My questions are:
- How can I add an Apex trigger which is triggered upon a user clicking this "export details" button?
- How can I access the xls contents in this Apex trigger code where I want to encrypt them?
I extensively searched in Apex user guide and many other sources. I can not find how to add triggers to standard SFDC buttons.
Thank you very much in advance.