Global Mapper v25.0

My DEM (from Global Mapper) don't work in Arcgis to calculate SLOPE in percent

I have a DEM from GlobalMapper. I wont calculate SLOPE in ArcMap (with Spatial Analyst Tool or 3D Analyst Tool) but the result (also I choose PERCENT RISE, in option and not DEGREE) is not a percent but a series of values that I don't understand.
I have find the following help with scripts, but they are missing on web:

"There wasn't a way, but I went ahead and added support for adding an EXPORT_SLOPE_PERCENT=YES parameter to the EXPORT_ELEVATION command so you can specify that you want the slopes in percents rather than degrees. I have placed a new build at with the change for you to try. Simply download that file and extract the contents into your existing v12.xx installation folder to give it a try. If you are using the 64-bit v12 version there is a new build at .

Let me know if I can be of further assistance."

Can you help me or send me the script at 64 bit? I work with Global mapper 11 or 14 (in italian) and ARCGIS 10.3, in Windows 7 Pro.
Can I send an image of the raster with results?
Thanks and regards, Piero (Italy, Milan)