Yes, EventSentry comes with a log file import utility which can be operated manually (double-click it and navigate the interface) or from the command line. The command-line documentation can be found here.
Here is an example of importing the Security log from all of the evtx files in the "C:\Temp\logs" folder by using a VBS script. Please note that you'll need to move or delete the evtx files when completed to avoid duplicate data resulting from importing the same files multiple times.
Option Explicit Dim FS, FO, FC, FN Dim MyFolder, MyExtension, CurrentExtension Dim MyImporterExe, MyEventlogName, MyActionName, MyCommand, MyShell MyFolder = "C:\Temp\logs" MyExtension = "evtx" MyImporterExe = "C:\Temp\EventSentry\eventsentry_db_import_x64.exe" MyEventlogName = "Security" MyActionName = "Primary Database" Set FS = CreateObject("Scripting.FileSystemObject") Set FO = FS.GetFolder(MyFolder) Set FC = FO.Files For Each FN in FC CurrentExtension = FS.GetExtensionName(FN) If MyExtension = CurrentExtension then MyCommand = "cmd /K " & Chr(34) & Chr(34) & MyImporterExe & Chr(34) & " /file:" & Chr(34) & MyFolder & "\" & FN.name & Chr(34) & " /eventlog:" & Chr(34) & MyEventlogName & Chr(34) & " /action:" & Chr(34) & MyActionName & Chr(34) Set MyShell = WScript.CreateObject("WScript.shell") MyShell.run(MyCommand) End If Next