how to open or convert and joined together 001,002,003 files into avi

Ultra Video Joiner is a tool to help you join or merge AVI (Divx, XviD, MPEG4), MPEG I/II, DVD (.VOB), VCD (.DAT), ASF / WMV files in one large file in various format. You can add an unlimited number of video files to the list and easily rearrange their order if needed, then merge the videos files to a large movie file in AVI (Divx, XviD, MPEG4), MPEG I/II, VCD, SVCD, DVD, WMV / ASF format.
You can even use the application to convert a single file. You can change the frame rate, size, and other settings as you like. This program does not require any technical experience and is very easy to use.

after i finish download the movies into two separated  files which is 001 and 002 files which is im not familiar of ,i try to search on google on how to open it or what program should i use to convert it into avi. and i tried use winwar but its not working and finally i figure it out by using ULTRA VIDEO JOINER



         if you have only one file which is 001. you can  convert it into avi  file by using
         this program or if you have two separated files you can either join them together
         as one file or any files you want as far as available on this application..first open up ultra video
         joiner as shown below and click the plus sign to find your files to be converted or join and
        then just click the join sign  and wait until the process done.. if you have no ultra video joiner
        just google it just download the trial version or if you like just post a comment and i will give you
        serial number ty,,..