Although both .asb and .add files are used in Alphacam, it is unlikely one can be converted to another. At best, you could execute the macro (.asb) to affect .add drawing, but that is not a conversion, just operation done in the software.
Convert Alphacam stone VB macro file to Alphacam CAD/CAM die-cut drawing.
We found one software available in the database for this conversion.
Microsoft Windows software - convert asb to add on Windows
A fully featured CAD/CAM solution compatible with any CNC machine
Convert from asb file format
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.