TRN MKS Source Integrity Project Log
TRN PageMaker (Adobe)
TRN Quattro Translation Support File (Corel)
TRN NSME Trains Screen Saver Train File (Oberon Medialab)
TRN SQL Server Transaction Backup (Microsoft)
TRN STN Express Transcript Text File
TRN TextBridge Training Data
TRN Translation
No es una base de datos
Esto sacará tu duda
Saludos