If you don't know how to set the .bxl file association, check the FAQ. Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.
Social work licensure and certification, including specialty certification, must be maintained by completing continuing education courses. Requirements for the number of hours and the types of courses that can be taken vary for each state.
You may want to become a social worker. Professionals in this field work with clients who are struggling with physical and mental illnesses, addiction, or poverty. Find out what education you need to become a social worker. Then take the Social Work Quiz to see if you have the characteristics to succeed in this field. What Education Do You Need?