What is com.apple.FinderInfo in `ls -l@` at Home?

Question

I run

~ master $ ls -l@

I get

total 3
drwx------+ 41 Masi  staff   1.4K Jul 18 03:20 Downloads
drwxr-xr-x@ 18 Masi  staff   612B Jul 14 10:41 Dropbox
        com.apple.FinderInfo      32B 
drwx------+ 54 Masi  staff   1.8K Jul  4 20:35 Library

com.apple.FinderInfo seems to be some data-structure.

ls' option @ should display only

Display extended attribute keys and sizes.

However, it displays a row with 32B which suggests me that it is a data-structure such as

0000   00 00 00 00 00 00 00 00 00 00 FF FF FF FF 00 00    ................
0010   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

I would like to know why the ls -l@ shows the data structure.

Why does the ls -l@ shows the data structure at my Home?

Answer 1

The com.apple.FinderInfo line is referring to the previous line's file, ie: Dropbox.

Answer 2

It is an extended attribute. "com.apple.FinderInfo" is the key, and that binary data is the value.