Templates are just report files (ie: RDL files) but placed in a special folder on your system.
If you’re starting with a blank page to create a report, you’re doing it wrong.
But where do these templates come from? In the Visual Studio 2015 version of the tools, they were here:
C:\Program Files (x86)\Microsoft Visual Studio 14.0\
I found after installing the VS2017 version of the tools though, that they weren’t there any more.
Greg has found them in two separate locations, so read on to learn more.