what is the extension fo sms that are saved in windows mobile?

Question

我想知道在其中保存短信的文件夹层次结构以及Windows Mobile中短信文件的扩展名是什么？

Answer 1

Why do you think they are stored in the file system as individual files? They're not. You can't just open a folder and walk files to get them, you have to use the Messaging API (MAPI) to open the store and pull them out.

Since you didn't indicate what language you're programming in, here's an example in C++ that pulls out SMS messages and saves them to a file.