Prerequisites
A local folder with separate raw, working, outputs and notes areas.
Steps and expected result
Extract the complete pack rather than opening one file inside a ZIP. Keep original sources unchanged and put edits in working. Record commands relative to the project folder. If output differs across systems, first check input bytes, parsing and versions.
Verification
Check the input row count and case control totals before attempting a larger exercise. Record your operating system/tool version when asking for support. Never include passwords or private source records.
Independent check
Explain which output proves the setup works and which capabilities remain untested. Do not disable security settings to make an exercise run.
Try the activity before reading its reference. Keep your sources, commands and assumptions with your work. Companion activities are unsaved self-practice and do not award a certificate or change lesson progress.