Odd TextEdit file pops up after rebooting

Question

Why did this text file open in text edit upon reboot?  The title is iMovieToGarageBandWorkflow. I've never seen it before and when I spotlight search for the file it is not even found.  I google that file name and nothing comes up either.  I have not installed anything recently.  I did just remove a few random applications I hadn't used in a long time, rebooted, repaired permissions, rebooted, ran a backup image to an external with CCC, booted from the backup and THEN this file came up.  I then booted from the local drive and not surprisingly, this file popped up again.  Seems really odd.  Any thoughts what it is or where is came from?
I included both a screenshot and the entire text below.
-- iMovieToGarageBandWorkflow
-- iMovieApp
--  Created by Greg Mullins on 11/18/05.
--  Copyright 2005 Apple Computer Inc. All rights reserved.
-- This is the first pass at sending GarageBand QuickTime based movie file of an iMovie project
--please don't localize anything below here....
-- send_garageband_imovieproject
-- main entry point for BeetleJuice to GarageBand workflow
on send_garageband_imovieproject(project_name, garageband_movie_path, is_garageband_running)
--display dialog "in send_garageband_imovieproject"
set projectName to project_name
set moviePath to garageband_movie_path
set          isGarageBandRunning to is_garageband_running
--display dialog "projectName: " & projectName
--display dialog "moviePath: " & moviePath
--display dialog "is_garageband_running: " & is_garageband_running
set userCanceledSaveReturnValue to "user canceled save"
--NOTE: we now expect GarageBand to be launched by the time we get here....
try
tell application "%@"
          activate
          --add ((moviePath as POSIX file) as alias)
          addmovie (moviePath as POSIX file)
end tell
on error
--display dialog "ERROR"
          return userCanceledSaveReturnValue
end try
end send_garageband_imovieproject

Answer 1

On the Mac, one thing that many folks don't know about is:
command-clicking on the document icon in the document's titlebar will display the path to the file. (This also works in Finder windows)
This will show you exactly where that file is on your hard drive. You can click on the file's enclosing folder in the pop-up to open it.
Also, there are possibly THREE Startupitems folders on your Mac:
YourHomeFolder/Library/Startupitems/
Macintosh HD/Library/Startupitems/
Macintosh HD/System/Library/Startupitems/
Anything in any of these folders will launch at system startup.