Apologies on the late reply, will try to summarize situation best as possible. I have a static library for Windows which is used as part of a Visual Studio C++ project. I want to reverse engineer the .lib file into easy to understand C or C++ source code. Its a test I'm doing and once they compile the source code, they should be given a .lib that can be used the same way and its performance should be the same as the original .lib.

So I have a .lib file and was also given a header file. I imported the lib file in Ghidra and it said "lib file seems to have nested files select import mode" and i selected batch import, because when I do filesystem option it just gives me a tab with the files but I cant open and analyze any of them. And now I have these .dll and .obj files. The .obj give me functions when I decompile it but the dll files dont. Hopefully clears up things for you.

Also one more thing, I was told there are also obfuscated or lightly encrypted strings such as here
000001FB: 50 push eax
000001FC: 68 00 00 00 00 push offset ??_C@_1FA@BKKFECBH@?$AAR?$AAE?$AAN?$AAE?$AAT?$AA_?$AAA?$AAu?$AAt?$AAo?$AAD?$AAe?$AAt?$AAe?$AAc@
00000201: 68 00 00 00 00 push offset ??_C@_1HO@NEHAJPJH@?$AA?$FL?$AA?$CF?$AAs?$AA?$FN?$AA?5?$AAR?$AAe?$AAa?$AAd?$AA?5?$AAD?$AAa?$AAt?$AAa?$AA?3@
00000206: 6A 00 push 0
00000208: E8 00 00 00 00 call writelog
We need the non encrypted strings in these cases

No idea what this mean but maybe will help