Emacs

Create table

M-x org-table-create

Transpose table

M-x org-table-transpose-table-at-point

Add/remove rows/columns

Insert row: M-S-Down

Delete row: M-S-Up

Insert column: M-S-Right

Delete column: M-S-Left

Move rows/columns

Move column left: M-Left

Move column right: M-Right

Move row down: M-Down

Move row up: M-Up

Display rows/columns

M-x org-table-toggle-coordinate-overlays

Shortcut: C-c }

Clear cell

M-x org-table-blank-field

Shortcut: C-c Space