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.
A bachelor's degree in social work is the minimum education required to become an entry-level social worker. Bachelor's degrees usually take four years to complete and require both general education courses and courses specific to social work.