Convert points from grid to ground

[jessi.pietrovito]

I have a csv file with the points in grid which I want to change to ground

The scale factor of 3TM Ground = 0.999799/1.00020104

I need to scale the points by 1.00020104 to change them to ground without changing the elevations of the points.

How do I do this?

[Todd_Rogers]

Set your coordinate system in the Drawing Settings. While still in the Drawing Settings, click the Transformation tab. Check the box to Apply Transformation Settings. Just to the right, under Grid Scale Factor, change the Computation to User Defined. Then enter your scale factor. Now import your points. In the import points dialog box, make sure you have checked Do Coordinate Transformation if Possible.