The famous library xarray is more or less standard in the data analyst branch. During the last few years, it has become prevalent. It has been deployed in many projects, often without any careful decision if it is needed or if there is any other way to treat the issue. One of the essential xarray functionality is the reading and writing of the NetCDF files. This is also a focus of this article where at the end, you should be capable of making the informed decision whether or not to use xarray.