Sorry DaveC I whilst I agree with most of what you say. I think my point was lost.

Technicians to engineers are trained to solve problems with pencil and paper, to draw pictures, to evalaute algebraic expressions, crunch numbers, draw graphs and other technical diagrams to aid solution. Excel simply integrates paper and calculator so that don't have to write calculation on paper and transcribe into calculator. It minimises errors and provides a template which improves presentation of future calculations and also speeds up such calculations.

So my point is who is going to be looking for Excel calculations? Those are using Excel already have, those who are not using Excel don't yet care.

If a new problem arises, then the starting point is a reference manual, possibly a text book with worked example. Now admittedly schaums outline provides MathCAD examples. But they are textbook problems, not real design solutions.

And submitting calculations to clients does not infringe copyright, it does not remove the need for the standard. A workbook develops and increasingly diminishes the need to reference the original standard. That infringes copyright.

The Australian region map in the wind actions workbook on this website infringes Australian standards copy right, both for the workbook and for the website recommendation, if permnission was not obtained to publish. And that is a risk which needs to be addressed.

It is not a simple matter of simply sharing calculations. Those calculations need to be presented in a suitable manner for a suitable purpose. The audience who are likely to go seeking workbooks needs to be thought out, and what type of workbooks they are likely to be seeking.

Thus as others have said the forum is initialy more important than the workbooks. First identify the type of workbooks people are seeking and likely to share.