FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Alternatively referred to as a cell pointer, current cell, or selected cell, an active cell is a rectangular box that highlights the cell in a spreadsheet.

Detailed explanation-2: -Active Cell: The active cell is the cell in the spreadsheet that is currently selected for data entry. You can change which cell is the active cell by clicking the left mouse button once or using the arrow keys on the keyboard.

Detailed explanation-3: -Active cell means the specific cell which is active in the current active worksheet. For example, if in sheet 2 cell B4 is selected means the active cell is B4 in sheet 2. In VBA we use a reference of active cell to change the properties or values of the active cell.