Opening a CNT File

The CNT file type is primarily associated with Android.

CNT	File extension: CNT
	File type:	cached data

What is a CNT file?

CNT files mostly belong to Android by Open Handset Alliance. A CNT file contains Pixel Per Square Inch (PPI) information used by ENVI geospatial image analysis software. Another type of CNT file contains data cached on an Android device. This can range from JPG/PNG images to videos saved in RIFF format. CNT is also one of the filename extensions used by MapInfo geographic information system. A different type of CNT file is the table of contents for a help (HLP) document created by HTML Help Workshop. This file contains a list of help topics saved in a given online help topic. Windows Help was discontinued in Vista.

How to open CNT files

You need a suitable software like Android to open a CNT file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your CNT file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a CNT file directly in the browser:. Just drag the file onto this browser window and drop it.

Online CNT Text Viewer

Choose your .cnt file to analyze

or drag and drop it here

Online File Viewer

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Programs that open and convert CNT files:

Android by Open Handset Alliance
See the previous paragraphs to learn more about the main application. CNT files are often referred to as Android raster images because this type of file is primarily created or used by this software.
HTML Help Workshop (table of contents) by Microsoft
HTML Help Workshop is a discontinued Windows application for creating and reading online documentation and tutorials about a Windows feature. It saves the table of contents of a help (HLP) document in a CNT file. This file format is classified as System. Related links: File format
MapInfo (data) by Precisely
MapInfo is a geographic information system with data visualization, analysis, and editing tools. CNT and MIF are the filename extensions of its data interchange format. This file format is classified as Data.
Rational Rose 98 (contents tab) by IBM
Rational Rose 98 is a discontinued iteration of Rational Rose extended development environment. Its contents tab is saved in a CNT file. This file format is classified as Data.

CNT file format:

Each file has a definite file format, that is, how the stored data is arranged in the file. The file format can be deduced from the file extension and the signature. If the file extension or signature does not match the file format, errors will occur when opening or editing the file. So you need a detailed analysis of a file to find out the format and the associated program. In the following you will find our evaluation of the CNT files:

CNT is a very commonly used file extension and includes various formats for various programs. But the following two file formats are common:

45% of all CNT files use the popular JFIF file format. JFIF is short for JPEG File Interchange Format. It is a bitmap graphic that uses JPEG compression. These files are binary files, so they do not contain text, but only cryptic characters. CNT files are between 2 KB and 84 KB in size. This file type is based on cutting-edge technology. Certain words are almost always found in the files, such as JFIF. Such files sometimes refer to thumb.
20% of all CNT files internally utilize the RIFF file format. RIFF files store data in tagged chunks. There are primarily used to store multimedia such as sound and video. If you open these files in a text editor, you will see only illegible characters. A typical file size is 13 KB. Several words can almost always be found in the files, e.g. WEBPVP8 and RIFF. Such CNT files store data about mtmxmdc and mdgx.

The remaining 35% of all CNT files are files with no common format, the following 8 formats can be found: Help File Contents, PNG, ZIP, Java, PDF and Version. Files like these are sometimes linked to state, fatigue, printing, result, report or normal. Just click the "Choose your .cnt file to analyze" button on this page to find out what your CNT file is.

Technical Data for CNT File Extension

File classification:

Raster Image

Related files:

hot, ctn, hoting, xml, zip, jpg, dat, bkr, riff, journal, txt, tnc, fts, hlp, exo, jfif, exe, nomedia, pdf, mp4, apk, os

Mime type:

text/plain, application/octet-stream

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: CntFileType, FileType: Help Contents File, AppName: Microsoft (R) Help Workshop

ProgramID: CntFileType, FileType: Help Contents File, AppName: Microsoft® Help Workshop
EXEFile: HCW.EXE

ProgramID: helpfile, FileType: Help File, AppName: Windows Winhlp32 Stub
EXEFile: winhlp32.exe

ProgramID: CntFileType
EXEFile: %ProgramFiles%\Borland\Delphi5\Help\Tools\hcw.exe %1

ProgramID: CntFileType
EXEFile: %ProgramFiles%\Help Workshop\hcw.exe %1

ProgramID: CntFileType
EXEFile: %ProgramFiles%\Microsoft Visual Studio .NET 2003\Common7\tools\hcw.exe %1

ProgramID: CntFileType
EXEFile: %ProgramFiles%\Microsoft Visual Studio\Common\TOOLS\HCW.EXE %1

ProgramID: CntFileType
EXEFile: D:\Help Tools\Help Workshop\hcw.exe %1

ProgramID: CntFileType
EXEFile: %ProgramFiles%\Borland\C++Builder 6 Professional Educational\Help\Tools\hcw.exe %1

ProgramID: CntFileType
EXEFile: C:\DevStudio\VFP\HELPCOMP\HCW.EXE %1

ProgramID: CntFileType
EXEFile: %ProgramFiles%\Borland\CBuilder5\CBuilder5\Help\Tools\hcw.exe %1

ProgramID: CntFileType
EXEFile: %ProgramFiles%\Borland\Delphi7\Help\Tools\HCW.EXE

ProgramID: CntFileType
EXEFile: %ProgramFiles%\Microsoft Visual Studio .NET\Common7\tools\hcw.exe

ProgramID: CntFileType
EXEFile: %ProgramFiles%\Help File Creator\hcw.exe

ProgramID: helpfile
EXEFile: winhlp32.exe

Show all 15 listings To Top

a cnt cached data is a special file format by Open Handset Alliance and should only be edited and saved with the appropriate software.

How to solve problems with CNT files

Associate the CNT file extension with the correct application.
Update your software that should actually open cached data files. Because only the current version supports the latest CNT file format. Search, therefore, e.g. on the Open Handset Alliance manufacturer website after an available Android update.
To make sure that your CNT file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .CNT file online - secure, fast, and no downloads needed.