It is designed for scenarios that require direct operating system application and in-depth data analysis. [Forced trigger scenario]: - User mentions reading/writing/manipulating Excel, WPS, Word, TXT, Markdown, RTZ, etc. - User wants to "grab", "extract", and "get" data from any application - User needs to perform "in-depth analysis", "trend research", "anomaly detection", and "prediction" on the data - User requests to generate "charts", "visualizations", "dashboards", "data reports" - users say, "Help me see in this document..." Analyze this data...", "Make a chart presentation..." - Any task involving cross-application data flow [Core Competencies]: System interface calls × Data in-depth analysis × Professional visualization IMPORTANT: As long as it involves any of the file operations, data analysis, and visualization, this skill must be used. Don't skip tasks just because they "look simple" - there are many pitfalls in the underlying interface calls, and there are pitfall avoidance guides in the skills.