If you use Windows Explorer or File Explorer to find your model, you may find many files with the same name, but different file extensions.

Question:

Why so many files?

Answer:

The CXL and the MTD are the last saved or the active model in RAM.

The other files are backup files.

For example, if the number of backup files is 3, you can see:

•CXL.3 & MTD.3 (oldest), CXL.2 & MTD.2, CXL.1 & MTD.1 (most recent).

•~CXL and ~MTD, which we replace with the active model files (CXL & MTD) every number of commands.

To control the number of backups, auto-save, and number of commands between each auto-save:

•Application-Settings > General tab > File Options > : Maximum # Backup files.

•Application-Settings > General tab > File Options > : Enable Auto-Save

•Application-Settings > General tab > File Options > : # Commands to Auto-Save

WARNING : You overwrite the original model with each Auto-Save.