Yes, this can happen. Copilot Studio can accept CSV files, but file reading in chat/knowledge scenarios is not the same as a full spreadsheet/database engine. For uploaded files, Microsoft documents limits such as supported file types and a text character limit of 30,000 characters per file/total for multi-file upload when code interpreter isn’t used, so a 1,170-line CSV can be partially processed if the extracted text exceeds that limit.
Thank you for your reply! To ensure a great experience for everyone, your content is awaiting approval by our Community Managers. Please check back later.