17,179,869,184 cells in one excel
Yes. You can turn on protection for any portion of the worksheet you choose.
to select cells
The Delete command.
Excel Checker is an Excel add-on that can find every occurrence of cells containing Data Validation or Conditional formatting and list them out on a separate sheet.
You can reference other sheets in the same workbook by putting the sheet name followed by an exclamation mark and then the cells you want. While on Sheet1, to reference cell C7 on Sheet3, you could do this: =Sheet3!C7
Three: Relative, Absolute and Mixed.
how to create a excel sheet
They are what they say. A row is a line of cells horizontally and a column is a vertical row of cells.
Pfa the excel sheet
At any one time you can only be working on one cell in Excel, like when you are typing data. Even if you have many cells selected, only one can actually be used. That cell is the active cell. All other cells are inactive. So an inactive cell is any cell that is not the active cell.
Yes, you can use characters other than letters and numbers in sheet names.