www.cryer.co.uk
Brian Cryer's Web Resources

.cxt file extension

.cxt
Macromedia Director protected cast resource file. These files are not editable and are for distribution with a movie (.dcr) file.

.cxt appears to have been used by older version of Macromedia Director. Modern versions of Adobe Director (Adobe having acquired Macromedia) use .cct files. 

Can you add to this? Do you know of any applications not already listed which will work with .cxt files, view .cxt files or open .cxt files? Are you able to contribute any additional reference information or file format information about .cxt files or have you spotted any errors or omissions? If so please let us know by emailing us at feedback@cryer.co.uk - Thank you.