Files with crypt11 file extension can be found as encrypted chat history databases from some of the earlier versions of WhatsApp Messenger.
Software that open crypt11 file
CRYPT11 file extension - WhatsApp Messenger encrypted message database backup
What is crypt11 file? How to open crypt11 files?
File type specification:
The crypt11 file extension seems to be mainly related to some of the earlier versions of WhatsApp Messenger, an instant messaging service and client for various mobile platforms.
The .crypt11 file stores encrypted and protected database with chat history similar to SQLite database format.
By default, the file is called: msgstore.db.crypt11 and is stored on phone SDcard/WhatsApp/Databases folder.
This crypt11 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.
Updated: April 6, 2024
The default software associated to open crypt11 file:
Company or developer:
WhatsApp Inc.
WhatsApp is a popular instant messenger available for Android and other smartphones and desktop OS platforms. It uses your mobile data connection or WiFi (when available) to message with friends and family.
WhatsApp Tri-Crypt (Omni-Crypt) 
Company or developer:
EliteAndroidApps
An application for Google Android operating system, which is used to monitor and convert WhatsApp .crypt5, .crypt6, .crypt7 and .crypt8, .crypt9, .crypt10, .crypt11, .crypt12 backup files to .crypt legacy encryption and to .crypt5, .crypt6, .crypt7 and .crypt8, .crypt9, .crypt10, .crypt11, .crypt12 decryption / encryption.
It is available in free and pro paid version.
List of software applications associated to the .crypt11 file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open crypt11 file, edit crypt11 file, convert crypt11 file, view crypt11 file, play crypt11 file etc. (if exist software for corresponding action in File-Extensions.org's database).
Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting crypt11 files.
Software that open crypt11 file - WhatsApp Messenger encrypted message database backup
Programs supporting the exension crypt11 on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about WhatsApp Tri-Crypt (Omni-Crypt) for open crypt11 file action.
