What is the meaning of read-only file

Users questions: What is read-only file, which is what used. Is the extension name is. EXE? Why WIN32 can not run?
Experts answer: degrees files are not modified. In the property where you can see, if you choose a read-only, then, is that the file can only browse but not modified. Extension . EX E of the file is an executable file that runs the program files. WIN32 is a system support file, you can not go alone to run it. Generally best not to go and get it system files, no problem in the system context. Thank you!
  • This information provided by the users.Thanks!