You're here because you have a file that has a file extension ending in .ecl. Files with the file extension .ecl can only be launched by certain applications. It's possible that .ecl files are data files rather than documents or media, which means they're not meant to be viewed at all.

A Management-Ware Mass Mailing News eCampaign list file is a data file that can be created and opened using the Mass Mailing News software from Management-Ware Solutions. These Management-Ware Mass Mailing News eCampaign list files are saved in the ECL format and encoded with XML-based specifications, and these ECL files are then saved and appended with the .ecl extension by the Mass Mailing News user. This software is classified as a bulk emailing and email management program. Email contacts and associated email details are listed and stored in an ECL file by a Mass Mailing News user. The status of each contact included in the list may also be entered and saved by the Mass Mailing News user in the associated ECL file. Date and time stamps can also be stored in an ECL file, making it easier and more convenient for Mass Mailing News users to organize and manage their email lists in these ECL files. The Mass Mailing News software references the details stored in the corresponding ECL file when the user accesses its mass email sending functionalities. Other features integrated into this program include customer relationship management functionalities and subscriber list development tools.

Launch a .ecl file, or any other file on your PC, by double-clicking it. If your file associations are set up correctly, the application that's meant to open your .ecl file will open it. It's possible you may need to download or purchase the correct application. It's also possible that you have the correct application on your PC, but .ecl files aren't yet associated with it. In this case, when you try to open a .ecl file, you can tell Windows which application is the correct one for that file. From then on, opening a  .ecl file will open the correct application. Click here to fix .ecl file association errors

Be careful not to rename the extension on .ecl files, or any other files. This will not change the file type. Only special conversion software can change a file from one file type to another.

A file extension is the set of three or four characters at the end of a filename; in this case, .ecl. File extensions tell you what type of file it is, and tell Windows what programs can open it. Windows often associates a default program to each file extension, so that when you double-click the file, the program launches automatically. When that program is no longer on your PC, you can sometimes get an error when you try to open the associated file.