The Player software for sharing Excel spreadsheets and mathematical models created in the 5.0 Solver Premium Edition is available from Universal Technical Systems. The software is part of a features set that also allows users to package a file without additional programming. Using the TK Solver for Excel, a file can be converted into a mini-application (.exe, .zip, .tke). According to the company's press release, this software works like Adobe Systems. Once downloaded, it runs behind the scenes. Recipients of the package can interact with the model by changing inputs and viewing the outputs, can perform automatic unit conversions and iterative calculations and can take advantage of extensive NIST thermodynamic and transport property functions.