Lattice Diamond: There are options to archive only the necessary project files in Diamond:
Open "Options" dialog (Menu "Tools"-> "Options...") and uncheck "Archive all files under the Project directory when archiving Project" in "Environment"->"General" page.
After unchecking this option, the archive function only archives the following files:
1. All source files of each implementation list in the project
2. All strategy files including .pty list in the project
3. Project file
This will allow user to save only the necessary files for recreating the project without using too much hard disk space.
Without unchecking "Archive all files under the Project directory when archiving Project" in "Environment"->"General" page, the project archive will archive all files into a large project zip file.