ext4 extract files
 

I need to locate file in ext4 system.img offset to extract it fast I don't need to use tools for doing it
what is the area for mapping and has the info about files in ext4 img
I need to know where is the offset of file I need to extract it fast

1- I wont to extract file I don't wont make mount for ext4 2- I wont to just extract file not mount or restore 3- I wont to know physically offset of the file I wont to extract from the ext4 area or file that responsible of save data of what offset is my file started and size of it

It's easiest to use a tool like ext2read after you unpack the IMG. It's like a directory browser for the IMG without mounting it.

Otherwise you can mount it to a loopback device easily to pull the file out.

I don't know how to determine the file offset within the IMG but you can use Sleuthkit to find the file and size, then dd it out.