Good question.
All of your data files are stored in the same folder as the program. A typical installation would place the program here:
file:///c:/Program%20Files/rfmobile/UniTrunker.
For each system logged, you will have five to seven files. All Motorola systems are logged as MotoSSSS.xxx where "SSSS" is the four digit system id and "xxx" is one each of these: SYS (system), RID (radio ids), GID (group ids), HZ (channels), SIT (sites), PLN (band plan), and FLT (fleet).
All 4800 baud narrow EDACS systems are logged as EDACS4SS.xxx. All 9600 baud standard EDACS systems are logged as EDACS9SS.xxx. Here "SS" is the site number which is used as a system id.
MPT1327 systems are logged as MPTSSSS.xxx where SSSS is the four digit system id.
APCO P25 systems are logged as WWWWWSSS.xxx where "WWWWW" is the 5 digit WACN and "SSS" is the 3 digit system id.