As shown below we enter the value of the first point in the cell A2. Then in the cell A3 we could enter 0.1 but instead we enter the formula "=A2+0.1". This way we can highlight cell A3 and copy it down the rest of the column until the last point is reached. (Point the mouse at the lower right-hand corner, so that it becomes the "fill handle" (thin cross), then drag down the column.)

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