All about 0001 Files

The 0001 file type is primarily associated with Arnold Renderer.

0001	File extension: 0001
	File type:	data file

What is a 0001 file?

0001 files mostly belong to Arnold Renderer. *.0001 files serve different roles based on their origin. They are not a single standard format but are used in various contexts:

Arnold AOV files: These files are parts of a split OpenEXR image created by the Arnold Renderer. This file holds render output data used in visual effects and 3D workflows. More details are available at Autodesk Arnold.

Compressed archive segments: In some cases, a *.0001 file is a segment of a multipart compressed archive. This segment must be combined with its others using an appropriate archive utility. See related information at NetCDF.

BCD backup files: Other *.0001 files act as backups for Boot Configuration Data in Windows. They are used by tools such as BCDEdit to manage system boot settings. More information can be found at Microsoft Documentation.

FilExt.com tip: Determine the source of your file to choose the right tool for opening or viewing it.
Files with the extension 0001 are often also jpg images or pdf documents, but zip compressed archives or medical images such as DICOM are also common. Use the Online 0001 File Viewer on this page to find out the file format being used, and to view your 0001 file.

How to open a 0001 file

You need a suitable software like Arnold Renderer to open a 0001 file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your 0001 file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a 0001 file directly in the browser:. Just drag the file onto this browser window and drop it.

Online 0001 Text Viewer

Choose your .0001 file to analyze

or drag and drop it here

Online File Viewer

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0001 file format:

Every file has a defined file format, i.e. how the data is arranged in the file. A file format is determined by the file extension and signature, so JPEG images have the extension .jpg and the first bytes in the file are ÿØÿ. Frequently, however, one file extension is used by different programs for different file formats, and one file format for different file extensions. Exact knowledge of the format is therefore important in order to solve problems occurring in files. In the following you will find our evaluation of the 0001 files:

The 0001 file extension is rarely used and has no uniform or dominant file format. The file formats most commonly found in 0001 files are:

• 15% of all 0001 files start with the bytes v/1 crucial for this file format. These files are binary files, so they do not contain text, but only cryptic characters. The files are 4 MB to 25 MB in size, with a median of 11 MB. The files contain the following words: ?CameraFilmApertureVertical, CameraFilmApertureHorizontal, float, ?CameraFocalLength, u=ColorSpace/G, x?CameraFov and YBColorSpace/Blue Primary.
• 7% of all 0001 files use the same file format, which have the signature regf. These files are binary files, so they do not contain text, but only cryptic characters. The files are often between 16 KB and 45 KB in size. The files contain the following words: Device\HarddiskVolume1\Boot\BCD and regf. An example of a file name is BCD.Backup.0001.

All other 0001 files (78%) have no consistent format, the following 5 formats exist: DICOM and SFMR. If you want to find out what your 0001 file contains, drag and drop it onto this page.