Following a recent comment I have added a VBA only version to the download files of the frame analysis spreadsheets:
The VBA versions should work on any version of Excel from 2007, with macros enabled, without any further installation.
The standard versions link to compiled versions of the solver code, that provide much better performance with large frames. The download file includes the required dll files, and the installation process is summarised here:
Any problems, please leave a message here.