File Extension Library

.001 File Extension

  • Category: Backup Files
  • Format: Binary

What are .001 files and how to open them?

Can't open .001 file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .001 file.

What is a .001 file extension?

.001 file extension has been classified as Backup Files. The format of .001 file is Binary

.001 is Split Archive File

A 001 file is the first file of a split archive created with various file splitting and joining utilities. It is used to split large archives into smaller, more manageable files. 001 files can be used for saving files onto multiple storage devices, such as USB drives or CDs, or for creating smaller email attachments.

An 001 file is one part of a larger archive, which means there is at least one more split archive associated with the file. Each part of a split archive is given an ascending number extension, which are .002, .003, etc.

NOTE: Programs such as 7-Zip use compound extensions for split archives. For example, 7-Zip creates split archives with the .7Z.001, .7Z.002, etc. extensions.

List of all softwares that can open the Split Archive File
Smith Micro StuffIt Deluxe for Windows
Welltek 001 File Joiner & Splitter
Freebyte HJSplit for Java
Freebyte HJSplit
OO1 File Manager
Smith Micro StuffIt Deluxe 16
Freebyte HJSplit for Java
Split & Concat
Incredible Bee Archiver
Freebyte HJSplit for Java
Freebyte HJSplit for Linux
File Type 2:

Norton Ghost Disk Backup

Developer by: Symantec Category: Backup Files

Backup of a hard disk created with Norton Ghost; created when a backup is split into multiple files due to the 2GB file size limit in DOS; other parts of the split backup have extensions ".002," ".003," etc.

Split backups created with Norton Ghost also include a .GHO file, which contains information about the backup files and is necessary for restoring the backup.

NOTE: Norton Ghost was renamed as Ghost Solution Suite.

List of all softwares that can open the Norton Ghost Disk Backup
Symantec Ghost Solution Suite
File Type 3:

Multimedia Fusion Backup File

Developer by: Clickteam Category: Developer Files

Backup of a project (.MFA) file created with Multimedia Fusion, a game development program; generated by the program's Autobackup feature; allows the project to be restored in case the original file becomes corrupted or is accidentally deleted.

NOTE: Multimedia Fusion may create multiple backup files with the extensions ".001," ".002," etc, depending on how many backup copies have been selected in the program preferences.

List of all softwares that can open the Multimedia Fusion Backup File
Clickteam Multimedia Fusion
File Type 4:

Fax File

Category: Raster Image Files Format: Binary

Fax image file created by various fax devices and software programs; may contain the image of the first page of a multi-page fax, while subsequent pages use the extension ".002," ".003," etc.; used to store the image data from received faxes.

List of all softwares that can open the Fax File
j2 Global Communications eFax
j2 Global Communications eFax
j2 Global Communications eFax
File Type 5:

Snes9x Slot 2 Saved State

Developer by: The Snes9x Team Category: Game Files Format: Binary

Saved game state created by Snes9x, a Super Nintendo Entertainment System (SNES) emulator; contains a game snapshot saved in the second of nine slots (slots 1-9); used to save and load SNES emulated game states.

Saved game slots 1-9 correspond to file extensions ".000" through ".009" on the Windows version of Snes9x. Their files are named using the ROM name followed by the respective slot extension. For example, GameA slot 2 would be named GameA.001.

Saved states are stored in the Saves directory of an Snes9x installation. On Mac versions of Snes9x, saved states use the the extension .FRZ ("frozen" states).

NOTE: Unlike a normal game saved state, which may only be created at certain points in the game, 001 files can be created at any time during gameplay.

List of all softwares that can open the Snes9x Slot 2 Saved State

How to fix problems with .001 files

  1. You need to update the application that you normally use to open .001 files. Only the latest version of the software supports the current .001 file format
  2. You need to check the .001 file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)