Ok, two things, first of all, I'd recommend opening the xls files in a program like XLS Notepad:
https://microsoft.github.io/XmlNotepad/#install/
Using Word or normal Notepad I believe may cause issues. Not 100% on that, but I have a recollection there could be issues there.
Secondly, I have found a conflict in the second race here:
<entry_max value="8" />
<event_goal_v value="-1" />
<event_goal_width value="-1" />
<finish_type value="TARGET" />
<fixed_retention value="0" />
<flagset value="FLAGSET_NORMAL" />
<ghost_type value="NONE" />
<grid_sort_type value="NONE" />
<immediate_finish value="1" />
<initial_retention10 value="0" />
<keep_load_ghost value="0" />
<lighting_mode value="AUTO" />
<pace_note value="0" />
<penalty_level value="0" />
<race_limit_laps value="4" />
<race_limit_minute value="0" />
<race_type value="COMPETITION" />
<racers_max value="12" />
Every other entry has 12 entries, but this one has 8, that could be a reason it's not working.
Hopefully this can get working for you.