OptionsThe Files options manage templates, backup files, file saving and locking. Template files LocationSpecifies the location of the template files. DefaultDefines the name of the template file Rhino uses when it starts. If a file is specified, this template is used when Rhino starts. If no template file is specified, a template list appears each time Rhino starts.
Save Create backup (.BAK) files when saving or exportingWhen enabled and a model is saved or exported to overwrite an existing file, the original file is renamed with an extension of.bak.The 3dm backup file (.3dmbak) can be opened from the Rhino File menu Open. AutoSave Save every minutesTurns on the Autosave feature and defines the save interval. When Autosave activates, a copy of the model you are working on automatically saves to the Autosave file. Autosave fileDefines the name and location of the Autosave file. If a model has been saved, the Autosave file name will include the model name. Always save beforeSets a list of commands that will save the file before the command starts.
AutoSave is enabled when working on a file that is saved to OneDrive, OneDrive for Business, or SharePoint Online. If the file is saved to another location (or if it hasn't been saved at all, yet), then AutoSave is disabled. This will happen if your file is on a SharePoint On Premises site, a file server, or saved to a local path like C:.
Save render and analysis meshes in autosave fileIf this setting is off, the model will save without meshes. File Locking Enable file locking. Creates.RHL filesRhino lock files.3dm.rhl are created to let other instances of Rhino know that a file is in use. Lock files are created when a.3dm file is opened or when an unnamed file is saved as a.3dm file.
Display read-only warningDisplays in a warning message to a second user who tries to access a locked.3dm file with Rhino.