Legal research can be done in many different formats. Which of the following is the least used format today?

Microfilm has become the least used format for legal research today due to advancements in technology and the increasing reliance on digital formats. In modern legal practice, attorneys and paralegals prioritize efficiency and accessibility, which online databases, digital archives, and print publications provide. Online databases allow for quick searches and access to vast amounts of information, while digital archives ensure that documents are preserved in an easily retrievable format. Print publications, although still in use, are often supplemented or replaced by digital resources. In contrast, microfilm is not as commonly utilized because it requires specific hardware to access, involves slower retrieval times, and lacks the user-friendly interfaces of digital resources, making it less appealing for contemporary legal research.