This is the heart of Surpac. The PDF must teach you the standard drillhole format:
If you download or purchase a tutorial PDF, ensure it covers the following six critical modules. Without these, the guide is worthless. Gemcom Surpac Tutorial Pdf
Before resource estimation, you must composite drillholes into equal intervals. A hands-on PDF provides macros or step-by-step screenshots for the Utilities > Drillhole > Compositing tools. This is the heart of Surpac