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In addition to the Shift + Arrow key method described above; Excel also has a couple of convenient functions for selecting larger areas of the spreadsheet. Shift + Space selects an entire row, while Ctrl + Space selects an entire column.
Ctrl + Shift + Down/Up Arrow
This extends the selection of cells to the last non-blank cell in the same column or row as the active cell. If the next cell is blank, the selection is extended to the next non-blank cell.
Ctrl + Arrows
Navigate to the bottom, top, left corner, or right corner of the current data region, depending on which arrow you press. Meanwhile, if you have several sheets in your workbook, Ctrl + Page Down/Page Up will move to the next sheet or previous sheet in your workbook respectively.
Cell values
Pressing F2 will edit the active cell that you have selected, positioning the insertion point at the end of the cell’s contents. If editing in that cell is turned off, this shortcut will move the insertion point into the Formula Bar. Esc will cancel the entry in the cell or Formula Bar, as well as exiting any dialog box that may be open.
Formulas
If you’re working with formulas, Ctrl +’ is a quick way to copy the formula from the cell above, while Ctrl + Shift +” will copy the value from the cell above without copying the formula.