Double click by the mouse on a member file in a competition tree will
open it on separate editor tab.
Probably to open a file not being in competition -
the menu "File" - "Open...". In the appeared dialogue to choose the necessary type of a
file and to specify it in file system of the computer.
Tab "Parse" (the hot key "F6") displays result of parsing of the initial
file content from tab "File". It allows to be convinced of correctness of understanding
by the module of tournament of structure of an initial file of the participant.
The result of diagnostics of analysis of a file is displayed in the panel
of diagnostic messages.