A KELGFILE is a log file created by Best Free Keylogger, a utility used to monitor what users do on a computer. It may contain keystroke records, Internet activity, captured screenshots, clipboard activity, chat messages, entered passwords, applications opened, and dates & times. KELGFILE files are used to send reports to the administrator of the activity on the computer being monitored.

To open a KELGFILE, select "Import" from the menu bar and drag-and-drop the file into the "Import Log Files" window. You can also click Add Files in the "Import Log Files" window navigate to the location of the KELGFILE and click Open. You can choose how the program creates log files, how it sends them, maximum log size, passwords, and more by selecting "Settings" from the menu bar. Best Free Keylogger is typically used to monitor employees on work computers and children on home computers. The program can record keystrokes, monitor applications, record internet activity, log chats, and passwords, and take screenshots.