Hitile files are HDF5-based 1D vector files containing data at multiple resolutions.
To see hitile datasets in higlass, use the docker container to load them:
docker exec higlass-container python \
higlass-server/manage.py ingest_tileset \
--filename /tmp/cnvs_hw.hitile \
--filetype hitile \
--datatype vector
Point your browser at 127.0.0.1:8989 (or wherever it is hosted), click on the little 'plus' icon in the view and select the top position. You will see a listing of available tracks that can be loaded. Select the dataset and then choose the plot type to display it as.