A file with .cf2 extension is a CAD file format that contains 3D package designs or other model data for die-cutting. Most of the CAD/CAM machines can process and cut these files. It was created by the National Space Science Data Center (NSSDC) to provide self-describing data storage and manipulation format that matches the structure of scientific data and applications such as statistical and numerical methods, visualization, and management.
Files with XLSM extension is a type of Spreasheet files that support Macros. From application point of view, a Macro is set of instructions that are used for automating processes. A macro is used to record the steps that are performed repeatedly and facilitates performing the actions by running the macro again. Macros are programmed with Microsoft's Visual Basic for Applications (VBA) from within the Excel Workbook using the Visual Basic Editor and can be run/debug directly from there.
You can also convert CF2 into many other file formats. Please see the complete list below.