level.txt is a text file that specifies which particular level of a network license (such as Basic, Plus, Ultimate, etc) should be retrieved from the license server in the case there are licenses for multiple levels of the same product available on the license server.
Usage
The level.txt file should be created using Notepad and saved in the directory that contains the executable file for the particular CSI program to which this level.txt file should be applied.
The content of the level.txt file is the license level that should be retrieved from the license manager server, such as BASIC, PLUS, ADVANCED, ULTIMATE, etc. Please note that different levels are available for different CSI programs.