Formula to convert .NET pixels to Excel width in OpenXML format

Question

I have spent many hours trying to determine a formula to convert .NET pixels to an Excel column width using the OpenXML format. I am using EPPlus to generate xmls documents. I\'

Answer 1

The formula that i came up with to convert pixel width to Excel width is

    private double PixelWidthToExcel(int pixels)
    {
        var tempWidth = pixels * 0.14099;
        var correction = (tempWidth / 100) * -1.30;

        return tempWidth - correction;
    }

To me it always gives exact value conversion.

And the formula for height

    private double PixelHeightToExcel(int pixels)
    {
        return pixels * 0.75;
    }