On any Windows File Share, if someone has opened a file for editing and you try to open it, youll get a message telling you cant open it in edit mode. Youre offered an alternative to open a read-only copy. You can save that as a separate file, but what you absolutely cant do is overwrite or change the original file that someone else has open. Now imagine that for the entire Global File System and you get Global File Locking.
But file locking by itself isnt sufficient for many types of projects with large, multi-part files. If multiple users are accessing the same file, you need granular sub-file locking. Without it, users end up routinely waiting for a colleague to finish editing the file, or have to make their own copies of files and manually merge edits later.
Global Sub-File Locking, or byte-range locking, takes a much more granular approach. Instead of just locking an entire file, it can lock only the relevant elements of a file that are in use. Its the equivalent of Google Drive for technical applications like AutoDesk Revit and AutoCAD, Tekla Structures, Bentley Microstation. Even large Microsoft Excel files can benefit from sub-file locking. It lets users work within the same project files while preventing file consistency or inadvertent data loss.