Houdini Niagara point cloud not recognized by UE4

I’m using the Houdini Niagara plugin to import a point cloud from a simulation. I’ve used the Niagara rop to export point cloud data. According to the tutorials, it should automatically be recognized as houdini data - but when I import the csv into UE4 it asks me what data type it is, as if it’s trying to import a curve object or something. All necessary plugins are enabled.

This is the video example I was looking at:

What does my CSV file need to be recognized properly? If anyone has a sample CSV they can share, I may be able to add the proper header manually or something.

Thanks for reading!

Figured it out - I need to change my .csv extension to .hcsv. Hope this helps someone!