A cell attribute is a characteristic about the cell like its row, column, its address the way that the data appears in the cell, colour, width etc.
Cell color refers to the color of the square you have selected in Excel.
Excel means egg cell or sperm cell.
cell
A green arrow in the corner of an excel cell means that excel suspects soemthing may be wrong with the formula in a particular cell.
In Excel, it means entering something in a cell.
The cell reference for the last cell in Excel 2003 is cell IV65536.The cell reference for the last cell in Excel 2003 is cell IV65536.The cell reference for the last cell in Excel 2003 is cell IV65536.The cell reference for the last cell in Excel 2003 is cell IV65536.The cell reference for the last cell in Excel 2003 is cell IV65536.The cell reference for the last cell in Excel 2003 is cell IV65536.The cell reference for the last cell in Excel 2003 is cell IV65536.The cell reference for the last cell in Excel 2003 is cell IV65536.The cell reference for the last cell in Excel 2003 is cell IV65536.The cell reference for the last cell in Excel 2003 is cell IV65536.The cell reference for the last cell in Excel 2003 is cell IV65536.
If you a mean a period as in a dot, then no it cannot be used to name a cell.
You may mean the gridlines that visually define a cell, or borders that can be drawn around a cell.
executable cell
That is the reference for the cell at Column B, Row 1.
It is a cell address in column Q, row 13.
AT1-AN1 means to subtract the contents of the cell AN1 from AT1, but I am not aware of any specific meaning of AT-AN in Excel.