You can adjust the width of grid columns and cells by dragging the column separators or by changing the grid settings.
To resize columns by dragging:
Rest the mouse pointer on the column boundary you want to move and drag the boundary until the column is the width you want.
To restore initial column widths:
Click the Cells Size 
button on the Format tab of the ribbon to open the Settings dialog box.
Select the Same width for all axis X columns option. The columns will be distributed evenly.
To change grid settings:
Click the Cells Size button on the Format tab of the ribbon to open the Settings dialog box.
You can change the cell width for the X- and Y-axes in terms of number of characters. Necto performs automatic alignment according to the number of characters. If a value is longer than the maximum number of characters, word-wrapping will occur.
You can also change the cell height for X-axis members (for the text lines).