Most Mandarin varieties have four tones. The final stops of Middle Chinese have disappeared in most of these varieties, but some have merged them as a final glottal stop. Many Mandarin varieties, including the Beijing dialect, retain retroflex initial consonants, which have been lost in southern dialect groups.
explorer.exe is a system process that is needed for your PC to work properly. It should not be removed. Check your system now to identify unused processes that are slowing down your computer. The explorer.exe file is an executable file for Windows Explorer.
The EXE file type is primarily associated with 'Executable File' by Microsoft Corporation. An executable file is basically another name for a program. Virtually all programs that run under Windows or DOS are in the .EXE format. All of these files start with ASCII MZ but often those produced by different compilers have further identification.