# Appendix ## General Questions **How do I access my course?** Click **My courses** in the sidebar, then click on the course you want to open. If your course is part of a session, click **My sessions** first, then select the session and course. **Can my learners access the course from a mobile phone?** Yes. Chamilo 2.0 has a responsive interface that adapts to all screen sizes. Learners can use any modern web browser on a phone, tablet, or computer. **What browsers are supported?** Chamilo 2.0 works with all major modern browsers: Chrome, Firefox, Safari, and Edge. For the best experience, use the latest version of your browser. ## Content and Courses **How do I create a backup of my course?** Go to the **Maintenance** tool in your course (accessible from the settings menu on the course homepage). You will find options to export your course content. **Can I copy content from one course to another?** Yes. Use the course import/export features in the Maintenance tool to copy content between courses. You will need to create an empty *destination* course first. **What file formats can I upload?** Chamilo supports most common file formats: PDF, Word documents, PowerPoint presentations, images (PNG, JPG, SVG, GIF), audio files, video files, and many more. Your administrator may restrict certain file types for security reasons. **What is the maximum file upload size?** This depends on your server configuration. Your administrator sets the upload limit. If you encounter a limit, contact your administrator. ## Assessment **Can exercises be graded automatically?** Yes. Most question types (multiple choice, true/false, fill in the blanks, matching) are graded automatically. Open-ended questions require manual grading, or you can use AI-assisted grading if configured. **Can I set a time limit on exercises?** Yes. When creating or editing an exercise, you can set a time limit in minutes. Learners will see a countdown timer. **Can learners retake an exercise?** Yes. You control the number of allowed attempts in the exercise settings. You can allow unlimited attempts or set a specific maximum, but this maximum applies to all users in your course (you can *free* new attempts by deleting previous ones, but this is not recommended as it results in unequal chances between users and it is registered for audit at the platform level). ## Technical Issues **I cannot see a tool on my course homepage. Where is it?** Some tools may be hidden. As a teacher, you can show hidden tools by looking for tools with a crossed-out eye icon. If you cannot find a specific tool at all, your platform administrator may have disabled it at the platform level. **My learners say they cannot access the course.** Check the course visibility settings (Course Settings > Course Visibility). If set to "Registered only," learners must be explicitly enrolled. Also verify they have an active account on the platform. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.chamilo.org/teacher-guide/teacher-guide/faq.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.