**New file** (Ctrl+N) clears RAM and resets the processor.
**Open** (Ctrl+O) loads a .580 file. **Save** (Ctrl+S) writes the current file, while **Save as** (Ctrl+Shift+S) always requests a new path.
**Import** (Ctrl+I) overlays TXT or XLSX data on the current session. **Export** (Ctrl+E) writes selected RAM ranges, registers, and flags to TXT or XLSX.
The application asks before opening, creating, importing over, or closing a session with unsaved changes.