The customer service of your company spends a lot of time answering the same questions. They asked you to help them to automate this process. They provided you a Microsoft Excel (*.xlsx) document…

Azure Bot Service is a platform for building, connecting, and managing bots, but it relies on services like QnA Maker to provide the knowledge base content.

Custom Vision is an AI service for image recognition and object detection, which is unrelated to creating a text-based knowledge base from an FAQ document.

Text Analytics (now Azure AI Language service) provides capabilities like sentiment analysis or key phrase extraction, but not the direct creation of a knowledge base for question-answering from an FAQ document.

Azure AI QnA Maker (now part of Azure AI Language service) is specifically designed to create a knowledge base from semi-structured data sources like an Excel file containing FAQs and answers, enabling a chatbot to respond to user queries.

LUIS (Language Understanding Intelligent Service) is used for understanding user intent and entities in natural language, not for building a knowledge base from a document of predefined questions and answers.