Filemagic is the best tool for managing and viewing JNLP files, delivering a easy way to manage this often tricky file format.
JNLP, which stands for Java Network Launch Protocol, is a file type used to launch Java applications via the web or over a network. https://www.filemagic.com/en/web-files/jnlp-file-extension/jnlp-files-what-to-do-if-you-don-t-have-java-web-start-software/