I have released version 1.3.0 of the Ponderosa Computing Linear Algebra Excel Add-Ins. There are two Add-ins, one supporting 32-bit Excel and the other supporting 64-bit Excel. You may download the release notes, user manual, and the installation packages, available on the Ponderosa Computing Software Downloads page.
I have released version 1.2.0 of the (32-bit) Ponderosa Computing Linear Algebra Excel Add-In. You are welcome to view and download the release notes and user manual, and to download, install, and evaluate the Excel add-in Windows installation package, all available on the Ponderosa Computing Software Downloads page.