alphabetical list of extensions

File extension .001

File description

File with 001 extension are known as split archive file. This file format is created by compression or archive software application.

The main purpose of this file is to split the data to be compressed or archived in case the data size of the files increases a specified limit. In this case the archive software application creates a number of split archive files which can hold the size of the data to be archived. The extension used for the first file in this case is 001 and the extensions are given in progressive order to the next files in the series.

Description of the problem
If you have on your computer a .001 file that you cannot open, you are in exactly the same situation as thousands of other people who have similar problems with this or any other unknown file.

There may be several reasons why you cannot open the file with .001 extension. Directly on this website you can find a solution of the most common problem with the .001 file – that you do not have on your computer the appropriate program to open the file.
Solution
From the list below, select the appropriate program, install it and double click on the icon of a file that did not want to open - the problem with the .001 file extension should be solved. However, if this does not happen, go back to the website to learn about other possible causes of the error, which have been described at the bottom of the website.
Category
Backup Files
Developer
N/A
Popularity
StarStarStarStar
File name: Split Archive File
Programs that will open this file:
Windows
Windows
001 File Joiner & Splitter 001 File Joiner & Splitter
7-Zip 7-Zip
File Splitter & Joiner File Splitter & Joiner
HJSplit HJSplit
HJSplit HJSplit
Micro StuffIt Deluxe Micro StuffIt Deluxe
OO1 File Manager OO1 File Manager
PeaZip PeaZip
SplitJoin SplitJoin
WinRAR WinRAR
ZipZag ZipZag
Mac OS
Mac OS
HJSplit HJSplit
Micro StuffIt Deluxe Micro StuffIt Deluxe
Split & Concat Split & Concat
StuffIt StuffIt
StuffIt Deluxe StuffIt Deluxe
StuffIt Expander StuffIt Expander
The Unarchiver The Unarchiver
Linux
Linux
File Roller File Roller
HJSplit HJSplit
HJSplit HJSplit
Xarchiver Xarchiver
Category
Backup Files
Developer
Symantec
Popularity
StarStarStar
File name: Norton Ghost Disk Backup
Programs that will open this file:
Windows
Windows
Norton Ghost Norton Ghost
Category
Game Files
Developer
The Snes9x Team
Popularity
StarStarStar
File name: Snes9x Slot 2 Saved State
Programs that will open this file:
Windows
Windows
Snes9x Snes9x
Mac OS
Mac OS
Snes9x Snes9x
Linux
Linux
Snes9x Snes9x
Category
Developer Files
Developer
Clickteam
Popularity
StarStar
File name: Multimedia Fusion Backup File
Programs that will open this file:
Windows
Windows
Multimedia Fusion Multimedia Fusion
Category
Raster Image Files
Developer
N/A
Popularity
Star
File name: Fax File
Programs that will open this file:
Windows
Windows
eFax eFax
Studio Batch Fax to PDF Converter Studio Batch Fax to PDF Converter
Mac OS
Mac OS
eFax eFax
Linux
Linux
eFax eFax
Remember!
The .001 file extension can correspond to several not related file formats. If there is more than one file format with the .001 extension, you will probably find most of them at this website. Remember that you need to download a program to support a particular file type. So first look through the entire contents of the website to select a program to support just the file you have.

Other possible reasons why your .001 file does not want to open

In addition to the problem described above, i.e. the lack of the appropriate application to support the .001 file, there may be several reasons that cause problems with opening and operation of the data format:

1. Incorrect version of the installed application

A quite common problem is the lack of application in the appropriate version. Even if you have an application, with the help of which you should open the .001 file, you may have a problem with it because of its version. Perhaps in previous versions the application has not yet supported the .001 file, so download the update and check again.

2. Incorrect .001 file association with the program

If you have already installed the appropriate application, and it is the correct version, the file may not open correctly, because the operating system does not have information that this program supports the file. So you need to "show" which program the computer should use. To do this:

  • Right-click the .001 file
  • Go to the "Open with" - then "Choose default program ..."
  • Locate the appropriate application
  • Click "OK"

3. The file is corrupt

It also happens that the file you want to open is corrupt and therefore there is no such possibility. In this situation, you should find its different version, or ask a person from whom you got, to send it again.