I want to import a schematic from OrCad Cadence Allegro to EasyEDA. How to do that?
Please read:
https://easyeda.com/forum/topic/How-to-ask-for-help-and-get-an-answer-71b17a40d15442349eaecbfae083e46a
And read about Import in (2) in the above.
You cannot import an Orcad file into EasyEDA.
You may be able to convert an Orcad file into one of the formats that can be imported into EasyEDA using 3rd party software.
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The process supports design scales of 300
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Brand new interactions and interfaces. 
Easy to use and quick to get started. 
Please read:
https://easyeda.com/forum/topic/How-to-ask-for-help-and-get-an-answer-71b17a40d15442349eaecbfae083e46a
And read about Import in (2) in the above.
You cannot import an Orcad file into EasyEDA.
You may be able to convert an Orcad file into one of the formats that can be imported into EasyEDA using 3rd party software.