Can't Open File

  • 10 November 2022
  • 1 reply

It's a simple error, but I couldn't solve it, I want your help. It says "Cannot Open File" to the file I am trying to select from Glass Fit Tool (It Also shows/selects the Data File as only “None”.)  I uploaded the file to the GLASSCAT folder and made the names the same even in Glass Fit Tool. But it says “can’t open file”. 

Thank You,



Best answer by Ethan 23 November 2022, 22:18

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1 reply

Userlevel 2
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Hi @Fhurkhan ,

We cannot see the attachments that you added to your post, but it sounds like OpticStudio cannot find your data file. It is likely caused by one of the following issues:

  1. The data file must be saved in the glass catalog folder. The default location for you is C:\Users\furka\Documents\GLASSCAT\ as shown in the error message.
  2. The file must have the correct file extension, either *.ind or *.tid for the type of data.