CT File

What are CT files and how to open them

Are you having problems opening a CT 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 CT files.

What is a CT file?

CT files have multiple uses, and Cheat Engine Cheat Table is one of them. Read more about the other uses further down the page.

Cheat Engine Cheat Table

Files with the .ct file extension are commonly associated with the Cheat Engine open source Windows-based game "cheat" application. Cheat Engine creates gaming modifications or "cheats" that make gameplay easier. The CT files contain the cheat files that are created with the application.

How to open CT files

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

Programs that open Cheat Engine Cheat Table files

Last updated: September 19, 2026

All known file formats using extension .CT

While Cheat Engine Cheat Table is a popular type of CT-file, we know of 5 different uses of the .CT file extension. Different software may use files with the same extension for different types of data.

Amiga Catalog Translation

Amiga Catalog Translation format is a text‐based localization template used in AmigaOS to supply translated versions of application strings. It serves as the bridge between the original built-in English strings and a final catalog file that an application uses to display messages, menus, and gadget labels in another language. Its intended purpose is to be edited by translators so that software can show localized text according to what the user has selected in the system's language preferences.

Developers provide a catalog description file (.cd) listing all the source text; tools like CatComp or FlexCat generate a catalog translation file from that. Once translation is complete within this format, the same tools compile it into a binary catalog file (.catalog), which is what applications load at runtime for localized output.

The first three lines of this translation file are required: a version line beginning "## version $VER: …", a "## language …" line using an English, lowercase name for the target language, and a "## codeset …" line giving the MIBenum for the character set in use. Following these are message identifier tokens, comments and translation entries deriving from the catalog description file.

Some internal identifiers help recognize the format: the header starts with the ASCII text "##version $VER:" at the very start; the file also contains literal keywords like "LANGUAGE", "CODESET" and references to ".CATALOG" within its lines.

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

CheeseCutter Tune

CheeseCutter Tune is a music file format used by the open-source SID music editor called CheeseCutter. It stores tracker-style song data intended for use with the SID sound chip on the Commodore 64, including multiple subtunes, instruments, sequences, and editor metadata. It allows composers to build complex SID compositions and later export or convert them to formats playable on a C64 or through emulation. The editor that writes this format is CheeseCutter (also known as CheeseCutter 2 or ct2util), a standalone SID music tracker developed by abaddon.

Creators use it for composing songs: arranging notes, commands, and effects in a sequencer; designing instruments with ADSR envelopes, waveforms, filters, vibrato, and other SID-chip-specific features; configuring song speed, swing tempo, subtune selection and zero-page relocation. After writing, files in this format are often exported via the companion utility (ct2util) to executable C64 binaries (PRG), standard SID files, or assembler source. CheeseCutter allows up to 32 subtunes per tune, 48 instruments, 128 sequences, built-in support for filter tables and waveform programs, and embedded metadata such as SID model and filter presets.

The internal structure begins with the ASCII bytes "CC2" at offset zero. This signature identifies the file as a CheeseCutter Tune.

CyberTracker Chiptune Audio File

We know that one CT format is CyberTracker Chiptune Audio File. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

Scitex Continuous Tone Bitmap File

Scitex Continuous Tone bitmap files are uncompressed raster images produced for high-end printing workflows on Scitex prepress systems. They store true continuous-tone data without halftone (screening) - image detail for smooth gradients and color separations rather than dot patterns. Color modes include CMYK, RGB, or grayscale; no support for transparency masks or alpha channels.

Creators of these files are Scitex Corporation's scanning or output hardware, or software that targets Scitex RIPs. Typical uses include color separations, retouching, and preparing press-ready artwork. These files serve as inputs to Scitex exposure or printing engines, not for display or web use; they generate large files suited to film or plate imaging where precise color fidelity is essential.

Internally, the format is structured into a control block, a parameters block, then image data. Image data is arranged in color separations (up to 16), most commonly four (cyan, magenta, yellow, black), with one-byte samples per separation. Raster rows are stored separation-by-separation in scan-line order (C-M-Y-K). Rows may be padded to maintain alignment. The signature byte sequence "CT" in ASCII appears at offset 80 in the file header.

Various apps that use files with this extension

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