CAL file format description

Many people often share .cal 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 .cal files. To address this issue, we have created this page to offer assistance and guidance on handling .cal files. We provide information on compatible software, editing instructions and conversion options to help users effectively interact with .cal files.

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

13 filename extension(s) found in our database.

.cal - CALS Compressed Bitmap

The CAL graphic files are related to FMJ Soft Image Eye. The CAL file is a CALS Compressed Bitmap. The CALS bitmap format was developed in the mid-1980s to standardize on graphics data interchange for electronic publishing for the federal government.

Application:FMJ Soft Image Eye
Category:Graphic files
Magic:- / -
Aliases:cals, gp4, mil

CALS Compressed Bitmap related extensions:

  • pvrtc PVRTC Compressed Texture Data
  • dxml Digital Optics V++ XML Image
  • cvx ACDSee Canvas Image
  • iimg Interleaf Image
  • ppma Portable Pixmap Image ASCII
  • draw Acorns Object-based Vector Image

.cal - Broderbund PrintMaster Calendar

The CAL document files are related to PrintMaster. The CAL file is a Broderbund PrintMaster Calendar document. PrintMaster is a software for making card, posters, banners, etc.

Category:Document files
Magic:- / -

Broderbund PrintMaster Calendar related extensions:

  • ban Broderbund PrintMaster Banner
  • biz Broderbund PrintMaster Business Card
  • car Broderbund PrintMaster Card
  • cer Broderbund PrintMaster Certificate
  • env Broderbund PrintMaster Envelope
  • hcr Broderbund PrintMaster Half-fold Card Data

.cal - Radiance Function File

The CAL data files are related to Radiance. The CAL file is a Radiance Function File. Radiance is a suite of tools for performing lighting simulation originally written by Greg Ward. It includes a renderer as well as many other tools for measuring the simulated light levels. It uses ray tracing to perform all lighting calculations, accelerated by the use of an octree data structure.

Category:Data files
Magic:- / -

Radiance Function File related extensions:

  • amb Radiance Ambient Data
  • dat Radiance Data File
  • hdr Radiance Map Data
  • oct Radiance Octree
  • rad Radiance Scene
  • rgbe Radiance RGB Map Data

.cal - Lego Mindstorms NXT Sensor Calibration Data

The CAL data files are related to LEGO Mindstorms NXT Software. The CAL file is a Lego Mindstorms NXT Sensor Calibration Data. LEGO Mindstorms NXT is a programmable robotics kit released by LEGO. NXT-G is a graphical programming environment that comes bundled with the NXT.

Application:LEGO Mindstorms NXT Software
Category:Data files
Magic:- / -

Lego Mindstorms NXT Sensor Calibration Data related extensions:

  • dwi Dependency Walker Image
  • fth Foobar2000 Theme Data
  • sgs WinDS PRO SGS Data
  • pao Xilinx Peripheral Analyze Order File
  • ebsx Bid Express Proposal Data
  • qdf-backup Intuit Quicken Data Backup

.cal - Keysight PLTS Calibration Data

The CAL data files are related to Keysight PLTS. The CAL file is a Keysight PLTS Calibration Data. Keysight Physical Layer Test System (PLTS) software is a powerful signal integrity tool for high-speed digital designers.

Application:Keysight PLTS
Category:Data files
Magic:- / -

Keysight PLTS Calibration Data related extensions:

  • bidqueue Bulk Image Downloader Queue Data
  • nnw NobleNet Web Data
  • dpm Dataplore Macro
  • cmp KiCad Parts-to-module Assignments Data
  • iib Lotus Notes Incremental Backup Data
  • fmr Pro/ENGINEER FMR Data

.cal - HTML Calendar Maker Pro Calendar Data

The CAL data files are related to HTML Calendar Maker Pro. The CAL file is an HTML Calendar Maker Pro Calendar Data. HTML Calendar Maker Pro is a program for Microsoft Windows that creates monthly web page calendars.

Application:HTML Calendar Maker Pro
Category:Data files
Magic:- / -

HTML Calendar Maker Pro Calendar Data related extensions:

  • ole2 Microsoft Office OLE2 Stream
  • asm Adobe Digital Editions Link
  • u00 PC64 User Container Data
  • twk TweakS Plugin Data
  • wsl Win-Situ Log
  • bada Bada Data

.cal - SWAT Auto-calibration Data

The CAL data files are related to SWAT. The CAL file is a SWAT Auto-calibration Data. SWAT (Soil Water Assessment Tool) is an hydrology model with the following components: Weather, surface runoff, return flow, percolation, evapotranspiration, transmission losses, pond and reservoir storage, crop growth and irrigation, groundwater flow, reach routing, nutrient and pesticide loading, water transfer.

Category:Data files
Magic:- / -

SWAT Auto-calibration Data related extensions:

  • bsb SWAT Sub-basin Output Data
  • bsn SWAT Basin Input Data
  • chm SWAT Soil Chemical Input Data
  • cio SWAT Master Watershed Data
  • cod SWAT Input Control Data
  • cst SWAT Weather Forecast Input Data

.cal - Creatacard Calendar Project

The CAL project files are related to American Greetings Creatacard. The CAL file is a Creatacard Calendar Project. American Greetings Creatacard is a simple digital card creator software for Microsoft Windows.

Application:American Greetings Creatacard
Category:Project files
Magic:- / -

Creatacard Calendar Project related extensions:

  • wmmp Windows Movie Maker Project
  • srj Sybase PowerBuilder Project
  • inform Inform for Mac OS X Project
  • stap Apple Soundtrack Pro Audio Project
  • vcp eMbedded Visual C++ Project
  • dp3 Digital Performer 3 Project

.cal - SuperCalc WorkSheet

The CAL data files are related to SuperCalc. The CAL file is a SuperCalc WorkSheet. SuperCalc was a spreadsheet application published by Sorcim in 1980. The SuperCalc seems to be no longer supported.

Category:Data files
Magic:- / -

SuperCalc WorkSheet related extensions:

  • xqt SuperCalc Macro

.cal - Cakewalk Application Language Script

The CAL development files are related to Cakewalk Sonar. The CAL file is a Cakewalk Application Language Script. Cakewalk Application Language (CAL) is an event-processing language that you use to extend Cakewalk with custom editing commands.

Application:Cakewalk Sonar
Category:Development files
Magic:- / -

Cakewalk Application Language Script related extensions:

  • npi dBase Application Generator Source Code
  • rts Resource Tuner Console Script
  • gsp Gosu Program
  • pickle Python Pickle
  • tcz TDF Czar Script
  • acl Arbortext Command Language Data

.cal - Autodesk 3D Studio Max Pose Adjustment Data

The CAL data files are related to Autodesk 3D Studio MAX. The CAL file is an Autodesk 3D Studio Max Pose Adjustment Data. 3D Studio is a 3D graphics modeling and rendering program.

Application:Autodesk 3D Studio MAX
Category:Data files
Magic:- / -

Autodesk 3D Studio Max Pose Adjustment Data related extensions:

  • atmpx Metrel ES Manager Autosequence Group
  • gfx RSView Machine Edition Graphics Display Data
  • abk HP 95LX Appointment Book Data
  • ls3 Band-in-a-Box Third-Party Styles
  • sha Altair FEKO Shadowing Information Data
  • metadix Apertium Metadix Dictionary Data

.cal - CryENGINE Character Animation List Data

The CAL data files are related to CryENGINE 3 SDK. The CAL file is a CryENGINE Character Animation List Data. CryENGINE is a game engine developed by Crytek.

Application:CryENGINE 3 SDK
Category:Data files
Magic:- / -

CryENGINE Character Animation List Data related extensions:

  • rck REScheck Data
  • lvg ListViewGenerator Data
  • xtp XTreeGold Overlay Data
  • sas StreamAction Script
  • pni Popnogging Image
  • ges PINGO GrADS Description Data

.fwi - HP PhotoSmart 850 Camera Firmware

The FWI data files are related to HP PhotoSmart 850. The FWI file is a HP PhotoSmart 850 Camera Firmware. The HP PhotoSmart 850 is a psuedo-SLR type digital camera.

Application:HP PhotoSmart 850
Category:Data files
Magic:- / -

HP PhotoSmart 850 Camera Firmware related extensions:

  • tem Borland C++ Turbo Editor Macro Script
  • jetkey iOS Support Jet File
  • icsalarm iCal Alarm Data
  • cca cc:Mail Archive
  • mwd3 MoneyWorks Data
  • nbm NetBeans Module

Be careful.

It is important to understand that the .cal file extension is not limited to a particular set of applications. Other programs besides the intended ones can also use the .cal extension to create files. This includes potentially harmful programs or malware that may generate .cal files for various purposes. Be especially cautious with .cal files coming from untrusted or unknown sources.

Can't open a .cal 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 an extension, you receive the following message:

Select an app to open this .cal file

To set the .cal file association in Windows 11, you can follow these steps

  1. Open the Settings app by clicking on the Start menu and selecting the gear icon.
  2. In the Settings app, click on System and then select Apps from the left-hand side menu.
  3. Scroll down and click on the Default apps option.
  4. Under the Default apps section, you will find various categories such as Email, Web browser, and Music player.
  5. Locate the category that matches the file type you want to associate, such as Photos for image files or Video player for video files.
  6. Click on the current default app listed under the category. A list of available apps will appear.
  7. Choose the app you want to set as the default for that file type. If the desired app is not listed, click on More apps to see additional options or click on Look for an app in the Microsoft Store to search for apps in the Store.
  8. After selecting the app, it will become the default choice for opening files of that type.

It's worth mentioning that you don't always need to set .cal file association. Many applications can open .cal files without requiring any specific file association to be set.

The .cal 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. Our goal in providing this list is to help users find the right information more easily and enhance their overall search experience on our website.

These misspellings were the most common in the past year:

acl, al, ca, ca1, cai, cak, cam, cao, cap, cl, cla, cql, cwl, cxl, dal

Is it possible that the filename extension is misspelled?

There is a possibility that the .cal 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 .cal:

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

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