ResponseHub is a security questionnaire automation platform that uses AI to help organizations complete vendor security assessments and compliance questionnaires. The tool processes security questionnaires in various spreadsheet formats and automatically generates answers by referencing uploaded policy documents, SOPs, and other organizational documentation. The platform maintains an automated knowledge base that stores previously answered questions and suggests new entries based on completed questionnaires. Each generated answer includes citations to specific policies, sections, pages, and sentences to provide traceability and confidence in responses. The tool includes an AI-powered parser that handles complex spreadsheet structures with multiple sheets and ambiguous column headers. Users can upload Excel files containing questionnaires, and the system extracts questions across all sheets, then allows downloading of the completed file with answers in the correct locations.