MoxyDraw can work with both spreadsheet and text files but the latter are much faster.
As mentioned previously, MoxyDraw is an AutoCAD add-in. And AutoCAD works with coordinates.
The best way to calculate the coordinates of your drawing is from a spreadsheet. From there, you export all the commands and coordinates to a text file via a macro.
VBA macros are not your cup of tea? Here are some links to start with:
Export macro in text file because some people may not like spreadsheets with embedded macros.
Export macro embedded in Excel.
Tests can be made with our freeware MoxyDrawLite:
Keep in mind MoxyDrawLite has only 7 commands instead of 84 for MoxyDraw.
What else? To see were to put the example files, go in MoxyDraw / MoxyDrawLite options:
MoxyDrawLite options
MoxyDrawLite options
Here is a Youtube video that shows:
How to Export an Excel Range to a text file (VBA code included)?