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Hi,



Kindly let me know can we open ZAR file or the made designs with version 19 with old versions like version 13?



 How?



Many thanks



Hamid



Hi Hamid,


 

OpticStudio file have backwards compatibility, so your colleagues should be able to open your files even if they have an older version of Zemax.



Keep in mind however that they might experience some problems/error messages if you are using some OpticStudio features that were not yet implemented in the version they are running.



Hope this helps!



Thomas




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