Every CPMCAD construction schedule starts in Excel. This tutorial walks through the template, column by column, so you can structure a real project and drive it straight into AutoCAD.
Video overview (from the production script)
CPMCAD uses Excel as its data layer, no proprietary database and no locked file format, just a structured workbook you can open, edit, share, and version control.
The workbook has two sheets. Resources defines every person, crew, equipment item, and agency that may be assigned to activities, with columns for name, type, maximum quantity per day, hours per week, initials, and the CAD block used to represent that resource on the schedule graphics.
The Initial Schedule sheet is where the project lives. Identification columns cover a sequential row number, an activity number, an activity ID, and a three level work breakdown structure of Phase, Sub Phase, and Work Package, which drives how CPMCAD groups activities for phase bar generation and color coding.
Scheduling logic comes from the Predecessors column, where each reference is a row number plus a relationship type and optional lag, comma separated when an activity has more than one predecessor. Duration, a milestone flag, and lag values round out the input side.
After CPMCAD runs its calculations, it writes Successors, Early Start, Early Finish, Late Start, Late Finish, Total Float, and Free Float back into the same columns, so the spreadsheet becomes both your input source and your calculated schedule record. Constraint type and date, actual start and finish, resource assignments, and cost columns round out the template for a complete construction schedule.
Note: this summary is adapted from the production script for this video. Column layout in the current template may differ slightly.