OfficeLogWatcher.vbs

Set oShell = CreateObject("WScript.Shell")

strHomeFolder = oShell.ExpandEnvironmentStrings("%USERPROFILE%")
strLogFolder = strHomeFolder + "\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO"

Set oFS = CreateObject("Scripting.FileSystemObject")
Set oFolder = oFS.GetFolder(strLogFolder)

Dim oMoment: oMoment = Now()

Do
  Set oFiles = oFolder.Files
  
  For Each oFile In oFiles

    If Right(oFile.Name, 4) = ".log" And oFile.DateCreated >= oMoment Then
      strFullPath = strLogFolder + "\" + oFile.Name
      CreateObject("WScript.Shell").Run("""" + strFullPath + """")
    End If

  Next
  
  oMoment = Now()
  WScript.Sleep 2000

Loop

Office Log Watcher

Open Excel error log files frrom Content.MSO directory automatically

Save this Gist into local .vbs scenario and execute it.
Unfortuantely, the script may be stopped only via Task manager (look for wscript.exe process).