Difference between bounded loop and unbounded loop

In which part of a professional email should you try to be brief, but highly descriptive?

What key should you press and hold to select and open multiple files at one time? enter alt control esc

What are ways to switch windows in excel? check all that apply. on the status bar, click the windows button, and then click the file name. on the task bar, click to display the excel jump list, and then click the file name. on the view tab, in the window group, click switch windows, and then click the file name. on the review tab, in the viewing group, click files, and then click the file name.