.001

File Type 1 Generic IconFax File
File Format Standard
Usage Open manually
Rank ★ ☆ ☆  Uncommon
Description

Contains image data for a received fax.

Open With
Windows

Iconj2 Global Communications eFax

IconAnyBizSoft Studio Batch Fax to PDF Converter

macOS

Iconj2 Global Communications eFax

Unix

Iconj2 Global Communications eFax

Updated 2007
File Type 2 Generic IconMultimedia Fusion Backup File
File Format Proprietary (Clickteam)
Usage Open manually
Rank ★ ☆ ☆  Uncommon
Description

Multimedia Fusion saves the initial project backup file with an ".001" extension. Other backups may be saved with the extensions ".002," ".003," etc. The number of concurrent backups can be selected within the program's preferences.

Info About Clickteam Multimedia Fusion

Multimedia Fusion is a full-featured software authoring tool that can be used to create games and multimedia applications. It provides a graphical interface that allows developers to drag and drop objects into the workspace. The properties of each object can be modified using the Properties Toolbar. Completed applications can be distributed as standalone programs.

Open With
Windows

IconClickteam Multimedia Fusion

Updated November 13, 2009
File Type 3 Split Archive File IconSplit Archive File
File Format Standard
Usage Runs when opened
Rank ★ ★ ★  Common
Description

HJSplit is a file-splitter for Windows and Linux systems. It splits large files into several small files so that they can be transferred more easily.

The first file segment of an HJSplit split archive has an ".001" extension. The other segments have the extensions ".002," ".003," ".004," etc.

Open With
Windows

IconSmith Micro StuffIt Deluxe for Windows

IconWellTek 001 File Joiner & Splitter

IconFreebyte HJSplit for Java

macOS

IconSmith Micro StuffIt Deluxe Mac

IconFreebyte HJSplit for Java

IconSplit & Concat

Unix

IconFreebyte HJSplit for Java

IconFreebyte HJSplit for Linux

Updated May 18, 2009
File Type 4 Generic IconNorton Ghost Disk Backup
File Format Proprietary (Symantec)
Usage Open manually
Rank ★ ★ ☆  Average
Description

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.

Open With
Windows

IconSymantec Ghost Solution Suite

Updated May 16, 2008
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