File Description: This tool is a microsoft excel file that selects valid flight level based on airport location and requested/desired flight level (without the need to go through any workload). Handles RVSM (Fl290-410) and below RVSM (FL200-280) FL's correctly. Input: 1. Departure ICAO 2. Arrival/destination ICAO 3. Requested/desired Flight Level. Output: 1. Main Track (Eastbound/westbound) 2. Notification of validity of requested/desired FL and recommended FL when requested/desired FL is not valid.