How to join split files (.001,.002,.003 etc.) from Usenet and P2P

In this guide, you will learn how to use the extremely easy freeware HJSplit to join your files that WinRar cannot handle, quick and painlessly.

Getting Started

To get started, you will need a file that has been split but cannot be joined using Virtual Dub and cannot be extracted using WinRar. These files will have extensions that look like this: filename.rar.001 with the ".001" number increasing with the amount of files you need joined. For example, if you need to join three files together, you should have a .001, a .002 and .003.

Get the latest free HJSplit here

That is all you have to do for now, besides making sure that all your files that need to be joined are in the same directory. If you are not sure about that, then make a new folder on the Desktop and throw all the pieces in there.

Opening HJSplit for the first time

Now that you have downloaded the application you will notice it will need to be extracted. Use WinRar or a similar application to complete that operation.

Once it is extracted, you will also notice that HJSplit does not need to be installed, it runs right from the .exe.

Open the application and familiarize yourself with the different sections if you like. There is a Split section, a Join section (which we will be using soon), a Comparesection, and a Checksum section.

Joining your files

Press on the Join button to open up the File Joining window.

Press on Input and navigate to the folder where you placed the pieces. Select the first piece, .001, and then press "Open". As long as you put all the pieces in one folder like I recommended before, HJSplit will automatically find the other parts during joining.

Your window should now look like the picture to the right, with the Inputand Output fields filled out.

Finishing up

We are almost done, so lets just finish up.

Press Start and watch as the progress bar tells you how far along the joining is. Small files will join almost instantly whereas larger files could take up to a couple of minutes.

When the process is done, HJSplit will tell you.

You can navigate to the folder where the joined file is an either extract it or play it, depending on what it is you joined together.


For those of you familiar with Usenet, the program QuickPar should also be noted. If you have downloaded PAR2 files, using QuickPar will easily allow you to repair or join the files after the program searches for corruptions. If repairs are not necessary then QuickPar will offer to join the files as the first step.

Version History

v1.0 -- 1st July, 2007, First version online (Dvdback23
Written by: Andre Yoskowitz