It appears the sheets contain header information and possibly grade reports, but the preview doesn't show detailed data or a clear structure for analysis. To proceed with visualizing the data, we need to identify specific data points or patterns you're interested in.

Do you have a specific aspect of the data you'd like to focus on or any particular type of graph in mind?

The 'ENG 102' sheet contains a mix of header information, student names, and possibly grades, but the sample doesn't clearly show the grade distribution. We'll need to clean and organize the data to extract meaningful information for analysis. Let's proceed with identifying and extracting the relevant data for grade distribution analysis.

The grade column doesn't contain actual grade data, only the header 'GRADE'. It seems we may have misidentified the column containing grades or the data might not be properly formatted in the Excel sheet. Without clear grade data, we can't proceed with the grade distribution analysis. We might need to re-evaluate the data or consider a different approach.

The 'FUTO-OGR' sheet appears to contain student names, possibly along with their grades, as indicated by columns with headers such as 'LAB', 'EXAM', 'TOTAL', 'GRADE', and 'REMARK'. However, the data is mixed with other information and headers, suggesting a need for cleaning and organization to extract meaningful grade distribution data.

Would you like to proceed with cleaning this data for grade distribution analysis?

To further the analysis, we could explore several other aspects such as the distribution of grades across different courses, the pass rate, or trends over time if the dataset includes temporal data.

Please specify which direction you'd like to take the analysis next, or if there's another task you have in mind.