In order to install OTbase XLSX Writer, execute the installation program. It will unpack OTbase XLSX Writer, place it in a program folder, and create a link on your desktop for easy program launch.
You can select the desired program folder. When the installation is finished you can launch OTbase XLSX Writer right away. Just keep in mind that you need to export Portable Inventory Data from OTbase Asset Center before you can create your first spreadsheet.