ISORA is performed every year, starting beginning of October and ending beginning of December.

Use Excel to CSV converter to ensure formatting is preserved. Ensure formatting is correct or it won't read. Check buildings (listed below) as they are the most likely to not be converted properly.
Basement Floor = 00
2nd Floor - 02
Basement Floor - 001
First Floor - 01
Third Floor - 03
First Floor - 01
Second Floor - 02
Third Floor - 03