You can easily create a drop-down list in Excel to limit the values that can be entered in a column. This data validation helps prevent mistakes, such as misspellings.

Select a cell where you want to show the drop-down menu. Go to Data > Data Validation. Select the List from the Allow menu. Write down your options in the Source box. Save your change.

Specifically, you can use Power Query to import a single dataset like an Excel workbook, a table from a website, or a database. Alternatively, you can import multiple datasets from worksheets in an ...