The project data is divided into several categories and saved in the following files.

Project-related Files and Their Contents

File	Extension	Description
Project file	.atmcproject	Items included in Project in the project tree.
User setting file for the project	.user_settings	Items included in User Settings in the project tree Created for each computer.
Global settings file	.atmcglobal	Items included in Global Settings in the project tree.
Material information file	.materialinfo	The material information managed in the project. Not created when materials are not managed in a project, such as when they are managed in a Work Unit.
Materials folder		The material folder managed in the project. Not created when materials are not managed in a project, such as when they are managed in a Work Unit.
WorkUnits folder		Work Unit information. The Work Unit folder contains the Materials folder and material information file.
ワークユニットファイル	.atmcunit	ワークユニットツリー上の各ワークユニット以下に含まれる項目。
atmcuser files	.atmcuser	Multiple files are created for the tree's folder open/closed information. Created on each computer.

Files that should be shared in the project

.atmcuser files and .user_settings are created for each computer.
They need not be shared when multiple persons are working on the project.
The project name+Cache folder need not be shared either. It contains intermediate files to speed up the application.