Exporting to HTML using Crystal Reports

[lra]

I am exporting my report to an html file using Crystal Reports. I have set
the following properties:

htmlOpts.HTMLBaseFolderName = @"C:\Temp\";
htmlOpts.HTMLFileName = "MyTest.html";

My file ends up in a temp folder (temp_187cb3f0-60bf-4ea7-a0f7-651a1bb0feb3)
which gets created in C:\Temp. Also, it ends up having a .htm extension
instead of .html. How can I avoid having this extra folder created and get
the correct extension?

Thanks,
LRA