After 24+ hours, my torrent client finished downloading a file named "42151f40aa07f154486b", size 22,540,359,965 bytes (md5sum cdc7b8a73fccef11238887cfc6ca5170), using the magnet for the 8R0051884GJ NAR 6.20.1 update, above. Is this correct? On my Solaris 11 x64 server and Linux desktop, "file 42151f40aa07f154486b" returns "data". Not sure how to extract the nav update from this big cryptic file. 7z, rar, & zip don't recognize it. Any suggestions?...
and for anyone looking for the NAR map here's a magnet for the 2019-20 6.20.1 NAR Map - 8R0051884GJ / 8R0060881GJ
AlbertCode:magnet:?xt=urn:btih:F9C2FA89021D6502E103A559EA5AFB046B8D6376&dn=NAR%206.20.1&key=8F593C5C4A12C3EEC276B2B96212868209764B9ADAE6E89A2282556AE522C932&tr=udp%3a%2f%2ftracker.openbittorrent.com%3a80%2fannounce&tr=udp%3a%2f%2ftracker.opentrackr.org%3a1337%2fannounce&tr=http%3a%2f%2ftracker2.wasabii.com.tw%3a6969%2fannounce&tr=udp%3a%2f%2ftracker.sktorrent.net%3a6969%2fannounce&tr=http%3a%2f%2fwww.wareztorrent.com%3a80%2fannounce&tr=udp%3a%2f%2fbt.xxx-tracker.com%3a2710%2fannounce&tr=udp%3a%2f%2ftracker.eddie4.nl%3a6969%2fannounce&tr=udp%3a%2f%2ftracker.grepler.com%3a6969%2fannounce&tr=udp%3a%2f%2ftracker.mg64.net%3a2710%2fannounce&tr=udp%3a%2f%2fwambo.club%3a1337%2fannounce&tr=udp%3a%2f%2ftracker.dutchtracking.com%3a6969%2fannounce
Update: Torrent corrected & updated on 19 Apr by OP.