A navigable timing report (TWX) file is a saved XML timing report created with the trce command or with Timing Analyzer.
For FPGA designs, opening a TWX file displays paths and instances as hyperlinks.
You can cross probe from Timing Analyzer to Technology Viewer or Floorplan-Implemented view by clicking a path or instance in an open TWX file.
Can I save a similar timing report in Vivado?
From 2014.3, Vivado can generate an XML timing report RPX file with the -rpx option of report_timing_summary and report_timing command.
The RPX file is an interactive report that contains all of the report information and can be reloaded into memory in Vivado Design Suite using the open_report command.
User can also save the RPX file in the timing TAB in the GUI by clicking the "Save report" button.