Script to create text files from Outlook appointments

We have a system that reads certain csv files to create HTML Lists of Appointments. So far this CSV was created manually. I wanted to replace this by a script that is able to read this information directly from Outlook. The script I came up with supports a mustache-like syntax to build templates which are then filled by the program. This allows to generate almost arbitrary text files. Here is an example of such a template: "{{FormatDateTime(currentday,2)}}, {{oAppt.Subject}}"