In exercises that include import of multiple Excel workbooks from a folder (e.g. Chapter 3 Exercise 3, Chapter 4 Exercises 3 and 4), you may see after the Combine and Edit step that some auto-generated entities in the Queries pane land up with different names (Especially if you use the latest Power BI Desktop).
The parameter file may be: Parameter1 (Sample File) instead of Sample File Parameter1 (Sample File)
The function name will be Transform File instead of Transform File from [Folder name]
The sample query will be Transform Sample File instead of Transform Sample File from [Folder name]