how to use the tool to view parquet files

[cstmgl]

Hi all,
I found this tool in the vscode market place when I search for parquet.
I checked the readme but I still don't understand how can I view a parquet file.
Is there any instructions I can follow?
This is what I see when I open a parquet file:

I would like obviously to see the content of the file, maybe as a json or any other kind of way but I fail to achieve that.
My file is not so big but I see that I get this in the bottom for a long time:

I really just don't know how to use this tool, sorry if my question is very obvious

[RandomFractals]

Parquet data files support is very alpha and has limitations of the TS library I am using to read them.

see here for more info: #13 (comment)