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.
Training and Educational Requirements. In order to become a social worker, a Bachelor of Social Work (BSW) degree is the minimum requirement. However, some individuals with psychology, sociology, and education degrees are able to find entry-level jobs in social work. If you are interested in providing therapy services, then a Master of Social Work (MSW) degree is required.