Archived reports from 2018 for the Sunpasitthiprasong Hospital also use this naming convention for monthly data files.
If you have downloaded this file from a cloud storage site like Windfiles , it is a compressed archive. Use this general guide to access it: 22361.rar
Could you clarify where you encountered this file? Knowing if it came from an educational portal , a hospital database , or a software modding site would allow for more specific instructions. Modern Pedagogy | Альма-матер a hospital database
You will need a utility like WinRAR , 7-Zip , or The Unarchiver to open .rar files. 22361.rar