What are Alias and com.apple.LSSharedFileList.Binding data in sidebsarlists.plist In the com.apple.sidebarlist.plist file you can find different CustomListItems for the "Favorites" items in Finder's Sidebar.

For example:

&lt;dict&gt;
    &lt;key&gt;Alias&lt;/key&gt;
    &lt;data&gt;
    AAAAAACmAAMAAQAAzyiimAAASCsAAAAAAAkOewAJDn8A
    AM8oo6IAAAAACSD//gAAAAAAAAAA/////wABAAgACQ57
    AAJl2QAOABQACQBEAG8AdwBuAGwAbwBhAGQAcwAPABoA
    DABNAGEAYwBpAG4AdABvAHMAaAAgAEgARAASABVVc2Vy
    cy9uYWlhZC9Eb3dubG9hZHMAABMAAS8AABUAAgAM//8A
    AA==
    &lt;/data&gt;
    &lt;key&gt;CustomItemProperties&lt;/key&gt;
    &lt;dict&gt;
        &lt;key&gt;com.apple.LSSharedFileList.Binding&lt;/key&gt;
        &lt;data&gt;
        ZG5pYgAAAAABAAAAAAAAAAAAAAAAAAAAAAAA
        AAAAAAAAAAAAZm53ZAIAAAAAAAAA
        &lt;/data&gt;
        &lt;key&gt;com.apple.LSSharedFileList.TemplateSystemSelector&lt;/key&gt;
        &lt;integer&gt;1935819884&lt;/integer&gt;
    &lt;/dict&gt;
    &lt;key&gt;Name&lt;/key&gt;
    &lt;string&gt;Downloads&lt;/string&gt;
&lt;/dict&gt;


What are "Alias" and "com.apple.LSSharedFileList.Binding" data and how to create your own data? 

I guess they are icons or path to them, but how to generate these data strings, what are the specification for those icons and where do they have to be stored?
See Apple's documentation on NSURL and bookmarks:

https://developer.apple.com/library/ios/documentation/Cocoa/Reference/Foundation/Classes/NSURL_Class/index.html#//apple_ref/doc/uid/20000301-SW34