When you install P4V, some ancillary files are installed on your system.
000x.ws: These files contain connection information for each workspace, as well as any expressions or filters that have been used to search within P4V.
000x.ws.ui: These files contain settings such as window size and position, as well as status information and directory state.
settings: This file stores global information about P4V. It also provides an index of the 000x.ws files stored on this machine.
log.txt: If you have selected Enable logging to file under Preferences (default setting), this is a record of all information displayed in the Log pane.
To view the Log pane from within P4V, select Help > Show Log. Log information is recorded to the log.txt file, regardless of whether or not you have the Log pane showing.
To access the help from within P4V, select Help > P4V Help.