Convert CRYPT to HTM

With software and websites such as  Whatsapp Xtract or WhatCrypt tools to export the chat backups from WhatsApp Messanger (.crypt files) and save them as in a HTML format (.htm, .html) which when viewed using a web browser will look exactly like your WhatsApp.

For the later versions of CRYPT format, like CRYPT12, you first need to use some tool that converts crypt12 to crypt, before you can work with them further, as the higher versions are heavily encrypted.