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This is very important & essential to know that how to Unrar or join the file .rar, .001, ._a , .a00.....,.vnw.
Now i am give you some software name for this extensions. Hope you Like it.
* Some files have "rar" extension for which you require "WinRAR" to extract the movie.
* Some files have ".001" extension for which you require "HJSplit" to extract the movie.
* Some files have "._a" extension for which you either require "FFJS" to extract or else rename the extensions to ".001, .002, .003...." respectively and use HJSplit.
* Some files have ".a00, .a01, .a02,..., .alz" extension, for which you have to download "ALZip" for extracting the movie.
* Some files have ".vnw" extension in the end. For such files, create a back-up in some other folder. Now rename one set of files to ".rar" and use "WinRAR".

1st Download FFSJ: The Fastest File Splitter and Joiner Version 3.3

FFSJ-Lite vs. FFSJ-Standard

FFSJ-Lite is only one .EXE file, it does not need to be installed, you can directly run FFSJ by double-clicking FFSJ.exe.
FFSJ-Standard = FFSJ-Lite + Shell Context Menu Plug-in. For Windows 2000/XP/Vista, you must log on as an administrator to install FFSJ-Standard.

After installation, you can launch FFSJ from Shell Context Menu:
Attachment 18235
How to split a file?

1. Switch to the "Splitting" tab:
Attachment 18236
2. Select the source file. There are several ways to select the source file:
- Choose the source file from open dialog
- Drag a file from Windows Explorer and drop to the "Splitting" tab
- Edit source file name directly.
- If you have FFSJ-standard installed, you can right click a file and click "Split" from Shell context menu.
3. Setup parameters according to your preference: change output directory, change number of split parts, change part limit, etc.
Attachment 18237
4. Click "Split" button, enter your password if you want to encrypt the data, and wait until File Splitter completed the task. You will see the message:
Attachment 18238
5. Done.
How to join split parts together?

All split parts must have the same name, except for their extensions (.001, .002, .__a, .__b, etc.). Joining split parts is equivalent to restoring original file.
1. Switch to the "Joining" tab:
Attachment 18239
2. Select the first split part (.001 or .__a file). There are several ways to select the first split part:
- Choose the first part from open dialog
- Drag the first part from Windows Explorer and drop to the "Joining" tab
- Edit the first part name directly
- If you have FFSJ-standard installed, you can right click a split part and click "Join" from Shell context menu.
3. Check the list of split parts from drop-down list.
Attachment 18240
4. Setup parameters according to your preference: Change output file, specify your split parts are in different locations, etc.
5. Click "Join" button, enter the password if your split parts are password-protected, and wait until File Joiner complete the task. You will see the message:
Attachment 18241
6. Done.
How to get MD5 signature of a file?

1. Switch to "MD5 Checksum" tab:
Attachment 18242
2. Select a file to get MD5 signature. There are several ways:
- Choose a file from open dialog
- Drag a file from Windows Explorer and drop to the "MD5 Checksum" tab
- Edit the file name directly
- If you have FFSJ-standard installed, you can right click a file and click "MD5 Checksum" from Shell context menu.
3. Click "Get & Copy" button, and wait until File Checksum complete the task. You will see the message:
Attachment 18243
4. Done. MD5 signature has been copied to clipboard, you can paste MD5 signature to somewhere and keep this signature with your file.