ZEMAX object data
File type: Various data file
A tob file extension identifies object-data files used by ZEMAX, optical design software for Microsoft Windows.
A tob file stores data for a tabulated faceted optical object.
File type category:
Various data file
Date updated: October 27, 2026
The tob file extension is associated with ZEMAX, software for designing and analyzing optical systems on Microsoft Windows.
The tob file contains object data used to model a Tabulated Faceted Radial or Tabulated Faceted Toroidal object.
The format is tied to ZEMAX and its optical-system modeling workflow, so it is mainly encountered with models created or used in that software.
Open the tob file in ZEMAX on Microsoft Windows. Load it through the relevant object or model settings rather than expecting it to open as a standalone document.
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