CL1 file format description

Many people often share .cl1 files without providing instructions on how to use them. This can make it difficult for users to determine which program is compatible for editing, converting, or printing .cl1 files. To address this issue, we have created this page to offer assistance and guidance on handling .cl1 files. We provide information on compatible software, editing instructions and conversion options to help users effectively interact with .cl1 files.

Our aim is to simplify the process and promote seamless use of the .cl1 file format.

1 filename extension(s) found in our database.

.cl0 - Atari ST Paintworks Image

The CL0 graphic files are related to Recoil. The CL0 file is an Atari ST Paintworks Image. The Atari ST is a line of home computers from Atari Corporation and the successor to the Atari 8-bit family.

Graphic files
- / -
cl1, cl2, sc0, sc1, sc2
Atari ST Paintworks Image related extensions:
Commodore 64 8x8 Font Data
Commodore 64 SEUCK Sprite Image
Atari 8-bit Anime 4ever Image
Commodore Amiga AMOS Bitmap
Commodore Amiga Continuous Bitmap Image
Commodore 64 AFLI-editor Image

Naturally, other applications may also use the .cl1 file extension. Even harmful programs can create .cl1 files. Be especially cautious with .cl1 files coming from an unknown source!

Can't open a .cl1 file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .cl1 file extension is often given incorrectly!

Based on searches conducted on our site in the past year, we have compiled a list of the most common misspellings. These frequent misspellings can cause confusion and hinder search accuracy. By providing this list, we aim to assist users in finding the correct information more easily and improving their overall search experience on our site.

These misspellings were the most common in the past year:

c1, c11, ck1, cl, cll, clw, cm1, cp1, fl1, sl1

Is it possible that the filename extension is misspelled?

There is a possibility that the .cl1 filename extension is misspelled. To assist users in identifying potential errors, we provide a list of similar file extensions in our database.

Filename extensions similar to .cl1:

CaseMap 1 Data
QIP Contact List Data
CARE-S InfoWorks Kjeldahl Nitrogen Detail Data
CARE-S InfoWorks Phosphorus Detail Data
Crick Software Clicker Data
OpenCL Kernel

Operating systems

At, we strive to provide a seamless user experience by ensuring compatibility with a wide range of operating systems. The following is a comprehensive list of the operating systems currently supported by

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

If you find the information on this page useful, please feel free to link to this page.

If you have useful information about the .cl1 file format, then write to us! >> CL1 file