Disclaimer: This is by far not the best approach to a problem of this nature. There are dedicated software that handle complicated functions like this. But, this is a moderately simple method to achieve the same using Microsoft Excel.
Please also note that there may be some errors that can arise as I have not extensively tested this method outside the scope of what I specifically need this for.
Scenario:
There is a list of tasks that needs to be done among 4 people. The tasks are individually assigned and they arrive at different times. Each task takes a fixed 3 working days to complete and has it's own deadline before which it needs to be completed. The work assigned to each person must be scheduled such that the deadline is prioritized as in an non-preemptive earliest-deadline-first (EDF) scheduler.