Different copies of package map files behave like one.

FelipeBucaram1

I have created a package file. I want to modify a copy of that packaged file but preserve the original. If I open it directly and modify it, then both package files get modified, the original and the copy.

• Also:
  • They both unpack with the same name to the same folder.
  • If I erase the folder that is automatically created then all changes are erased from all package files.
  • If I use the extract tool then a new .mxd file is created and the problem is solved. They both alter only their specific package file.

Why is ArcGIS behaving like this? I am curious because I am learning to use it.

Thanks!

DanPatterson_Retired

Package Map—Help | ArcGIS for Desktop

uses the *.mxd first and foremost, which means that if you want a different version, then you should give it a different name AND even if you don't change anything in the project and want to make a copy, there is nothing wrong with saving A.mxd as B.mxd  even though they are identical.  You could exploit this by using the following

original.mxd

backup_2016_07_31.mxd

backup_2016_08_01.mxd

etc

then create packages as you see fit from the mxds which may or may not reflect changes in input data and/or other project changes.

My rule, never overwrite an mxd (except in the most minor of cases), do incremental saves and one ultimate backup every day