CLO File

What are CLO files and how to open them

Are you having problems opening a CLO file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your CLO files.

What is a CLO file?

CLO files have multiple uses, and Cloe Picture Bitmap is one of them. Read more about the other uses further down the page.

Cloe Picture Bitmap

We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

How to open CLO files

Important: Different programs may use files with the CLO file extension for different purposes, so unless you are sure which format your CLO file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested nine different CLO openers which you will find listed below.

Last updated: August 31, 2026

All known file formats using extension .CLO

While Cloe Picture Bitmap is a popular type of CLO-file, we know of 2 different uses of the .CLO file extension. Different software may use files with the same extension for different types of data.

SPSS Chart Look

SPSS Chart Look files store saved style templates used by SPSS Statistics to control how charts look. They contain the visual settings that define things like font types and sizes, line and symbol styles, color palettes, fill and border styles, and axis appearance. Such files are created when a user in SPSS's Chart Editor designs a chart, formats its visual elements, then saves those formatting choices as a Chart Look.

A Chart Look file is produced by SPSS (originally under older versions) to allow reuse of a chart's visual styling for new charts. Once a Chart Look is saved, SPSS can apply it automatically via syntax or options menus so that charts consistently follow the same appearance theme without having to reformat each chart individually.

Technically, Chart Look files carry a signature - some fixed byte patterns at known offsets - that indicate they're in the SPSS "old ChartLook .clo" format. For example there is a recognizable ASCII string starting at byte 0 like "...c.vhsA.Rni..ia.c…" including "Chart" among repeated internal identifiers in that header. Another signature appears at offset 84 showing strings like "class SpAxis…" along with other internal keywords.

Various apps that use files with this extension

These apps are known to open certain types of CLO files. Remember, different programs may use CLO files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about CLO file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.