The sublime-workspace file is a proprietary data format used by the Sublime Text code editor to store session-specific information. Unlike project files (.sublime-project) which contain structural configuration and folder mappings, the workspace file tracks the transient state of the editor. This includes the current layout of open windows, the specific files currently open in tabs, the cursor positions within those files, undo history, find-and-replace history, and active selections. Because this file is automatically generated and updated by Sublime Text to reflect the user's immediate workflow, it is generally considered ephemeral and is typically excluded from version control systems like Git. It allows developers to close their editor and resume exactly where they left off, maintaining the context of their programming environment across different sessions.