Drill hole import issue

[alanrf1]

I am just starting to learn the geology/mining package but have experience with other products so bear with me. I followed the prompts to load a drillhole data base that has holename, northing, easting, surface elevation( collar), Strat name, Bed name, From, To, thickness, key status and then qualities. When I loaded the file it said the no strat over the surface elevation was loaded. What happened is that my collar elevations is say 470. My strat runs from 0 to 1200. The program only loaded the strata from 0 to 458. 458 to 1200 was missing. It was the same for the rest of the holes. How do I get the program to load the rest of the strata? Do I have to change the from to to negitave values? Do I "add" 470 to the from to values?

[alanrf1]

Ok I figured it out by messing with the program. I did not need both the from to columns and the thickness column to import the data correctly.