我在Windows下的GCC中组装了一个程序集文件，如下所示：
as main.s -o main.o
现在我有以下目标文件：
4C 01 03 00 00 00 00 00 90 00 00 00 08 00 00 00
00 00 05 01 2E 74 65 78 74 00 00 00 00 00 00 00
00 00 00 00 04 00 00 00 8C 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 20 00 30 60 2E 64 61 74
61 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
40 00 30 C0 2E 62 73 73 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 80 00 30 C0 C3 90 90 90
2E 66 69 6C 65 00 00 00 00 00 00 00 FE FF 00 00
67 01 66 61 6B 65 00 00 00 00 00 00 00 00 00 00
00 00 00 00 2E 74 65 78 74 00 00 00 00 00 00 00
01 00 00 00 03 01 01 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 2E 64 61 74 61 00 00 00
00 00 00 00 02 00 00 00 03 01 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 2E 62 73 73
00 00 00 00 00 00 00 00 03 00 00 00 03 01 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
04 00 00 00
我想查看这个文件，试着理解目标文件是如何组合在一起的。我在哪里可以找到该文件格式的格式规范？