Is it possible to make an offline installer on windows?

Alright, the last post was an absolute mess.

I just want to know, Can I make an offline installer for an ice lake laptop on windows with OpenCore (I have my own EFI). Because my internet is very limited. I can't install it twice if I messed up something.

Specs - *Model - Dell inspiron 3593 *CPU - Intel core i3 1005G1 (ice lake) * RAM - 4GB 2666MHz *wifi - Qualcomm QCA9377 *OC version - 0.7.2 *No dGPU

My EFI - https://drive.google.com/drive/folders/1hsW3KvjS2NZkX2j4Q0x37hMsufUnaXLM?usp=sharing