Which activity should you use to read all the data from a .xlsx file?

Using the "Excel Read Range" activity is the most suitable choice for reading all the data from a .xlsx file because this activity is specifically designed to extract a specified range of cells from an Excel worksheet, and if no specific range is indicated, it defaults to reading the entire sheet.

This attribute makes it versatile and efficient for scenarios where you want to gather all the data contained in a worksheet. It allows the user to easily import data into a structured format, such as a DataTable, which can then be manipulated or analyzed within the automation workflow. This capability is fundamental in RPA, as it allows for seamless interaction with structured data.

In contrast, the other options do not offer the same level of specificity or capability to read a complete set of data from an Excel file. Some may only provide limited functionality or apply to different contexts that do not align with the need for comprehensive data extraction from an Excel workbook. For instance, an option might focus on reading specific rows or data types, limiting its applicability in a scenario demanding the retrieval of all entries in a worksheet.