CIN File

What are CIN files and how to open them

Are you having problems opening a CIN 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 CIN files.

What is a CIN file?

CIN files have multiple uses, and Calculux Indoor project is one of them. Read more about the other uses further down the page.

Calculux Indoor project

These CIN files contain the calculations and formulas made in Calculux, a software developed to help lighting designers select and evaluate lighting systems. You use it to do lighting calculations, predict financial implications, select luminaires from a Philips database, calculate room dimensions, compile reports, and support light regulations.

How to open CIN files

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

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

Last updated: August 5, 2026

All known file formats using extension .CIN

While Calculux Indoor project is a popular type of CIN-file, we know of 6 different uses of the .CIN file extension. Different software may use files with the same extension for different types of data.

Cinemaware music

These CIN files contain the MIDI-like files used in Wings, a game created by Cinemaware, video game developers.

Delphine CIN Video

These CIN files contain the compressed audio and video data in a file format developed by Delphine Software. CIN is a full-motion video file used in the DOS version of Fade To Black, a video game created by Delphine.

CIN opener for Windows

We have identified one CIN opener that is compatible with this specific type of CIN file.

Id Software Quake II Cinematic Video File

These CIN files contain the cinematic videos used in Quake II, a video game developed by id Software, a game development company. Id Software released a program for you to create your own .cin cinematic files. You need to generate a series of animation sequences to create your cinematic.

Programs that open these CIN files

We have identified one CIN opener that is compatible with this specific type of CIN file.

Interact Cassette Image

We know that one CIN format is Interact Cassette Image. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

Kodak Cineon Bitmap

Kodak Cineon Bitmap files hold photographic film image frames as digitized, high-dynamic range RGB data using a logarithmic encoding scheme that preserves the original film's density response. They are created when film negatives or positives are scanned by Kodak's Cineon scanning system, and used throughout visual effects and film production pipelines for grading, compositing, archiving, or for converting back to film print.

Each Cineon file stores a single frame with three color channels (red, green, blue), no alpha channel. The data is encoded with 10 bits per channel in "log" space so that variations in film exposure and printing density map more efficiently into digital values. This allows capturing almost all useful information in the original film negative, giving flexibility in post-production and for output back to film without loss in look.

The file format version associated with this kind of .CIN file is Kodak's "Draft 4.5" specification. A Cineon file begins with a 32-bit "magic number" signature (hex 802A5FD7) at byte offset 0 signaling its identity and byte order. The header includes metadata such as image dimensions, file size, channel designations, version of the format, and the offset where image data begins, followed by the packed log-encoded pixel data.

Known programs that work with this exact file format include Bitberry File Opener.

Programs that open these CIN files

We have identified one CIN opener that is compatible with this specific type of CIN file.

Various apps that use files with this extension

These apps are known to open certain types of CIN files. Remember, different programs may use CIN 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 CIN file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.