Convert/Compress a file to .UPK

Heey! I need help I've extracted UPK ava files now I want to compress it back.. I mean put all files just to one to UPK

Download the latest version below.
Get UDK (February 2015 UDK).

But there's a problem.... when I repack again to upk all hex code names are changed I don't know why. it should convert/repack to .upk without change anything inside as the origin file

Help me if you can please D:

What are you trying to do? I need more information as some things are not possible and some are possible .

You know Google can be of use here also right !

/Moved to the correct section.

1 week has passed and no further replies have been made by the OP. Assuming solved.

/Closed.