The following steps apply to all operating systems:
* Install either version of IntelliJ IDEA: [https://www.jetbrains.com/idea/#chooseYourEdition the Community or Ultimate edition].
===File Extensions and XQuery Flavor===
* Start IntelliJ IDEA and navigate to ''Settings/Preferences'' either using the ''Configure'' button
from the start screen or the ''IntelliJ IDEA'' menu.* In the Settings/Preferences window, expand the ''Languages & Frameworks'' item, select ''XQuery'' and choose which default file extensions ans which XQuery flavor you would like to use.
* Click ''Apply'' to store your XQuery settings.