What type of activities are performed with the help of the software used in hospitals?

Xrays, Ultrasounds, managing patient records, communicating with colleagues, etc.

yes we can change both the color of the value of a cell as well as background color of a cell at the same time .

as we know that excel sheet consists of columns and rows.

and intersection of column and row is called cell.

we can change color of the cell and background of the cell at the same time.

hence the statement that

can a person change color of the cell and background of the cell at the same time is true.

answer inspecting packets in isolation from their context;