All about CLO Files

The CLO file type is primarily associated with CLO 3D.

CLO	File extension: CLO
	File type:	3D design file

What is a CLO file?

CLO files mostly belong to CLO 3D. The CLO files you have can belong to several distinct applications. Their content and purpose depend on the originating software.
For example, one common use is with CLO 3D software. In this case, a CLO file is a 3D clothing design file that is stored as a compressed archive (often using the ZIP format) containing data such as garment models, textures, and simulation settings. You can find more details on the CLO 3D website.
Other variations include:

Academic Configuration Files: These files act as LaTeX class options or thesis configuration files (for instance, those used with the NOVA thesis template or guidelines from Springer). They are text-based and help set document layouts.

Embroidery Machine Files: Certain CLO files contain embroidery machine data and are used with systems like Brother PE-Design 10.

Log or Disk Image Files: In less common cases, the extension may represent system log files or disk image archives, with viewers such as ACDSee available for analysis.

FilExt.com note: Always verify the file’s origin and use the appropriate tool—a text editor for configuration files or the specific design software (like CLO 3D) for 3D design files—to correctly open and view its content.

How to open a CLO file

You need a suitable software like CLO 3D to open a CLO 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 CLO file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a CLO file directly in the browser:. Just drag the file onto this browser window and drop it.

Online CLO File Viewer

Choose your .clo file to view this image

or drag and drop it here

Online File Viewer

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How to convert CLO files to OBJ, STL, PLY, 3DS, FBX, STP, ...

1. Just click the "Choose your .clo file to view this image" button on this page.
2. Your CLO file will then be displayed in the browser.
3. Now click on "Save as..." at the top of the page.
4. Then select the 3D format (e.g. STL, OBJ, 3DS, X, X3D, STP, PLY, ...) you want.
5. Your file will be converted and downloaded.

CLO file format details:

If you know the file format, you can also find out how to open or edit the file. The initial characters of a file are called signature, sometimes also referred to as "magic bytes". The signature can be used to infer the file format. However, different programs can use the same file extension, and file extensions can be assigned incorrectly. When there is a problem with a file, the first step to solving it is to determine the file format. Below you will find our evaluation of the CLO files:

CLO is seldom used as a file extension and includes different formats for the applicable programs. The following file formats are most commonly found in CLO files:

• 20% of all CLO files start with the magic bytes 00 00 A0 E1 00 00 A0 E1, which are always the first bytes of this file format. These are binary files, so they do not contain words or text. The files are often between 28 MB and 32 MB in size. The following filename is common: creative_30.CLO or firmware_update_quiltexpression720.clo. Files like these are sometimes connected to firmware, update, quiltexpression, performance, topaz and expression.
• 10% of all CLO files use the same file format, which can be identified by the letters "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%" at the beginning. These files are text files and can therefore be read using a text editor. The files are often between 310 bytes and 5 KB in size. Certain words are almost always found in the files, such as %%%%%%%%%%%%, %% NOVA thesis configuration file, Costumization, chapter, style, %% defaults.clo and strings and cover. A usual file name is defaults.clo.

The remaining 70% of all CLO files are different files with different signatures, frequently e.g. ZIP, ACD and SVJour. Files like these are sometimes linked to svglo, userdisk, keep, chest, hvdd or hvdr. If you want to find out what your CLO file contains, drag and drop it onto this page.