Files with etxt file extension might be found as encrypted text files made in old Secure Notepad software by exLibertine.
ETXT file extension - Encrypted text
What is etxt file? How to open etxt files?
File type specification:
The etxt file extension seems to have been used in the past for an encrypted text file from Secure Notepad by exLibertine.
It looks like the company is no longer in business and the program is no longer available. Probably obsolete file type.
This etxt file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.