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What is the CAP File Extension?

Author:   |   Refreshed: November 26, 2018

Microsoft Silver

CAP File Summary

File Extension CAP has nine unique file types (with the primary being the Network Monitor Packet Capture Data File format) and is mostly associated with Microsoft Network Monitor (Microsoft Corporation) and ten other software programs. These files can be categorized as Data Files, Audio Files, or Developer Files. In the majority of cases, these files will be Data Files.

File Extension CAP files have been identified on both desktop and mobile devices. They are fully or partially supported by Windows, Mac, and Linux. The CAP File Extension carries a Popularity Rating of "Low", meaning that these files are scarcely found in most user's file stores.

If you are having problems opening CAP files, or would simply like to learn more about the software programs and developers that are associated with them, please see the complete information contained below.

Low
Universality
193
Ranking

/ 11690

Active

Status

26

November

2018

Revised

FileViewPro Opens CAP Files

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Types of CAP Files

  9 known file types use this extension

Primary CAP File Association

.CAP
File ID:.cap
Category:Network Monitor Packet Capture Data File

CAP is a file extension related to Network Monitor program found as a part of some versions of Microsoft Windows operating system (2000, XP and Vista). It could be found in Control Panel. The CAP file contains packets that have primary data taken over a data transmission. This is like a trace file or bone file and is used by multiple packet sniffer applications.

Company: Microsoft Corporation
Function:Data Files
Location: HKEY_CLASSES_ROOT\.cap

Software Programs That Open The Network Monitor Packet Capture Data File:


Microsoft Network Monitor by Microsoft Corporation

Windows

Wireshark by The Wireshark Team

Windows
Mac
Linux

Alternative CAP Types

.CAP
File ID:.cap
Category:ProComm/Telix Session Capture File

CAP file extension may refer to a file that is related to Telix program and is used for capturing the format of the sessions of the program. Telix is an old communication program for Windows 95 and Windows 3.X.

Company: deltaComm Development Inc
Function:Data Files

Software Programs That Open ProComm/Telix Session Capture File Files:


Telix for Windows by deltaComm Development Inc

Compatible with:

Windows
.CAP
File ID:.cap
Category:CaptionMaker Caption File

The CAP file extension is also an extension for files associated with the CaptionMaker software for Microsoft Windows. CapttionMaker allows users to make media accessible for people with hearing difficulties by storing captions which are some kind of subtitles.

Company: Telestream
Function:Data Files

Software Programs That Open CaptionMaker Caption File Files:


CaptionMaker by Telestream

Compatible with:

Windows
Mac
.CAP
File ID:.cap
Category:Capella Music Sheet Data File

CAP file extension which is associated with Capella software for music notation is for files that stores documents with music score. The Capella software is available for Microsoft Windows operating system developed by Capella Software.

Company: Capella Software AG
Function:Audio Files

Software Programs That Open Capella Music Sheet Data File Files:


Capella by Capella Software AG

Compatible with:

Windows
.CAP
File ID:.cap
Category:Code Architect Project File

The CAP file extension is associated with a software called Code Architect. Code Architect is a software that provides an online and offline platform to develop and create codes with programming languages like C, Pascal, Modula-2, Visual C++ and other programming languages.

Company: Code Architects
Function:Developer Files

Software Programs That Open Code Architect Project File Files:


Code Architect by Code Architects

Compatible with:

Windows
.CAP
File ID:.cap
Category:Snoop Capture File

CAP is a file extension related to the Snoop which is an easy and flexible command line packet sniffer included with the Sun Microsystems' Solaris Operating System. It is an open source software and its source code is available via the OpenSolaris project. The cap file stores captured data.

Company: Sun Microsystems
Function:System Files

Software Programs That Open Snoop Capture File Files:


SunOS by Sun Microsystems

Compatible with:

Linux
Unix
.CAP
File ID:.cap
Category:Construct Game Development File

CAP file extension is related to files stored by the game creator Construct. Construct is an HTML5 game creator used to design 2D games. The program is available for Microsoft Windows operating system.

Company: Scirra Ltd
Function:Developer Files

Software Programs That Open Construct Game Development File Files:


Scirra Construct by Scirra Ltd

Compatible with:

Windows
.CAP
File ID:.cap
Category:Java Card Converted Applet

CAP is a file extension that is associated with Java Card. Java Card is an environment that secures applications running on smart cards and other trusted devices. CAP files usually contain converted applet from Java Card.

Company: Oracle Corporation
Function:Data Files

Software Programs That Open Java Card Converted Applet Files:


Java Card by Oracle Corporation

Compatible with:

Windows
.CAP
File ID:.cap
Category:Phase One RAW Image

The file extension CAP is chiefly related to Phase One digital cameras. The file stores captured images in RAW unprocessed format.

Company: Phase One
Function:Camera Raw Files

Software Programs That Open Phase One RAW Image Files:


Microsoft Windows Photos by Microsoft Corporation

Compatible with:

Windows

Capture One by Phase One

Compatible with:

Windows
Mac

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CAP Demand


OS Hierarchy

7 (45.73%)
10 (44.56%)
8.1 (5.41%)
XP (2.79%)
8 (0.97%)

Browser Popularity

Chrome (58.80%)
Firefox (11.05%)
Internet Explorer (9.04%)
Edge (8.46%)
Safari (3.87%)


Troubleshooting Problems Opening CAP Files


Common CAP Opening Problems

Microsoft Network Monitor Disappeared

When trying to open your CAP file, you get the error "Can't Open CAP File Type". When this happens, it is commonly due to Microsoft Network Monitor missing in %%os%%. The OS won't know what to do with your CAP file, so double-clicking to load the file doesn't work.


Tip: If you have another software that you know opens CAP files, you can select it by hitting the "Show Apps" button.


Microsoft Network Monitor is Out-of-Date

In some cases, you might have a newer (or older) version of a Network Monitor Packet Capture Data File file that is unsupported by your installed application version. If you do not have the proper version Microsoft Network Monitor (or any of the other programs listed above), you may need to try downloading a different version of it, or one of the other software applications listed above. This problem is predominately due to having a Network Monitor Packet Capture Data File file version that was created by a newer version of Microsoft Network Monitor than what you have installed on your PC.


Tip: If you right-click on your CAP file, then select "Properties" (Windows) or "Get Info" (Mac), you can obtain hints about what version you need.


Conclusion: The majority of CAP file opening issues are due to not having the correct Microsoft Network Monitor version installed.


Associated Difficulties Loading CAP Files

You can still experience errors opening CAP files even with the latest version of Microsoft Network Monitor installed on your PC. There can be external issues inside of %%os%% that are causing these errors when opening CAPs. Problems unrelated to software:

  • Corrupt Windows Registry file path references for CAP
  • Mistaken removal of the Windows registry CAP description
  • Incomplete or bad installation of a software application associated with the CAP format
  • Your CAP can't be loaded properly (file corruption)
  • Your CAP is infected with malware
  • Hardware associated with CAP has outdated drivers
  • Insufficient system resources to successfully open Network Monitor Packet Capture Data File files

Quiz: Which of the following is not a MIME type?








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How to Fix Problems Opening CAP Files

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