Traditionally viewing .parquet files requires some sort of online service, being it Apache Spark, Impala, Amazon AWS etc. However, when working in your local development environment it's really hard to see them, unless you write some soft of script printing it on a console. Even then, it's not really convenient to browse the result.
Therefore, I'm happy to announce that we've created a desktop version of Apache Parquet format viewer. It's using the latest version of Parquet.Net (https://github.com/elastacloud/parquet-dotnet) library and the latest advancements in it.
It's also available in Windows 10 store https://www.microsoft.com/en-gb/store/p/apache-parquet-viewer/9pgb0m8z4j2t?ocid=badge&rtc=1 and it's open-source https://github.com/aloneguid/parquet-viewer-uwp.
This app is for Windows 10 only. We could go cross-platform by using something like Electron, however I personally think all electron apps are looking like a proof of concept horribly slow beasts. And it's better to support a single platform well, rather than many platforms badly.