From the name of this tool, FileAlyzer, we can guess the purpose of this tool. It is a tool to analyze files. Verify MD5 and SHA1 of a file is the feature we used most of the time. Sometime, we also check import and export table of a dynamic link library (DLL). There are others more features, such as analysis resources structures of a file. Use it is pretty simple. Just right click on a file and select "Analyze file with FileAlyzer" from the right click menu. All the info will be shown in a window similar to properties window.