FAT16 file system disk - Complete advanced formatting partition in FAT16

After full advanced format, FDT and FAT of root directory definitely reset. Now let's refer to the difference between full format and quick format in processing sub-directory and data region. Firstly, we create a file in this partition named "ABC", whose contents are as following chart:

After full format, the content of "ABC" is:

Obviously, neither of full format and quick format changes the contents of sub-directory.

In addition, full format doesn't change the file contents.