Backups of models

The first time you save a LEGION Model File, LEGION Simulator automatically creates a backup file called <filename>.mbk (where <filename> is the name of your model) and saves it in the same directory as your ‘lgm’ file.

Every subsequent time you save your model, LEGION Simulator saves the earlier version of the model as an ‘mbk’ file and overwrites the previous ‘mbk’ file. This means that when you save your model for the third time, the ‘mbk’ preserves the second saved version; when you save for the fourth time, the ‘mbk’ overwrites the second ‘mbk’ file with the third saved version and so on.

Warning: Remember that each saved ‘mbk’ overwrites the previous backup file.

This means you can restore previous versions of models when needed: change the backup file’s extension from .mbk to .lgm. and open within LEGION Simulator in the usual fashion.

In the unlikely event that you want to turn this feature off, you can do so by following this procedure:

To turn off backups:

Select Tools > Options > Application Settings.
Uncheck the box labelled Generate backup when saving.
Click Apply or OK to save your changes.