Files that contain the CNT extension are associated with multiple programs and applications and various file types. The programs and applications include ENVI PPI, Microsoft Windows, and Hidden Files. CNT files contain data and information related to the program that created them.
If the CNT files are related to ENVI PPI, they are a data file type that contains analytic data, numerical content, figures, objects, and other elements which are necessary for environmental vegetation analysis. ENVI is an application produced by ITT Visual Information Solutions that provides hyperspectral tools for producing spectral and image maps. The application is used by environmental scientists to provide hyperspectral analysis of vegetation.
CNT files created by Microsoft Windows are a system file type that contains Help information used for the Windows operating system and the applications that run on it. The files either come preinstalled with Windows or they accompany the application installation. This type of CNT file is typically in a plain text ASCII format and can be created using the HTML Help Workshop by Microsoft.
CNT files that are classified as a hidden file type are typically in a compressed file format and can contain malware comprised of multiple files which are merged together into one file. If the CNT file is an unknown file type, you should avoid opening it to prevent malicious code from being distributed on your PC.
How to Open CNT Files
If you are certain the CNT file is associated with a program, double click on the file to see if it will automatically open in a default program you have installed on your PC. As long as the CNT file is a trustworthy file type, you may already have a program which will open it.
If the CNT files are related to ENVI PPI, you must have the ENVI software program installed in order to open them. ENVI is available as a paid download on the Exelis website.
CNT files that are associated with Microsoft Windows can be opened using any version of the Windows operating system or by using HTML Help Workshop, which is available for download on the Windows Development Center website. Since this type of CNT file is typically in plain text, you can open and view its contents using any text editing program such as Notepad or WordPad. Simply right click on the CNT file and choose Open With from the drop-down menu. Click on the text editor in the submenu or click on Browse to locate the program you want to use to open the CNT file.
If the CNT file is a hidden file type from an unknown source, it is better to play it safe and delete the file from your operating system. Unknown file types have a high probability of containing malware. Once you have deleted the file, be sure to visit your Recycle Bin to delete the CNT file from this location as well.