How can I plot this set of data on Excel or OriginLab, possibly scatter plot, where a same x value corresponds to multiple y

x, y

1, 1

1, 2

1, 3

2, 2

2, 3

2, 4

I actually have hundreds of x values, each with 20 different y values.

I found the reason. We need to make sure the number is on the right of the cell, not on the left.