Reasoning: """
To complete this task, I will:

1. Open the attached commute_activity_data.csv file.
2. Examine the data to locate the relevant columns for gender, age, and daily time spent walking. 
3. Filter the data to only include rows where:
    - Gender is male 
    - Age is between 20-30, 30-40, or 40-50
4. For each of the three age groups, calculate the average (mean) of the daily walking time values.
5. Send an email back to Amy with the requested average walking times for each male age group.
"""

Action: open_file
Argument: commute_activity_data.csv