USS Excelsior (NCC-42037)
The USS Excelsior (NCC-42037) was a Federation  starship that was in service during the early 25th century. 

In 2401, Starfleet Cadet Elnor and Commander Raffaela Musiker were assigned to the Excelsior. Shortly after taking their positions, the Excelsior took the flank of the  during the encounter with the . ()  

After arriving in an alternate timeline, Elnor and Musiker discussed how their last memory was being on the bridge of the Excelsior. ()

Following the return of Picard and his friends to 2401, Musiker ended up on the Stargazer while the resurrected Elnor remained on the Excelsior. As the fleet combined their shields with the Borg ship's to block a massive energy wave, the Excelsior's harmonics were off and the shield emitters had to quickly be recalibrated. Elnor responded to the hail, shocking his friends who had seen him die while in the alternate timeline. Musiker had Elnor adjust the Excelsior's shields and the combined Federation-Borg force successfully blocked the energy wave and saved countless lives. ()

Federation starships