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Getting evaluation copy error message for some customer


we are using Aspose cell in our web application for reading /creating excel file but we are facing strange issue where we are getting message “You are using an evaluation copy and have opened files exceeding limitation” although we have purchased licence that is valid till 28 December 2017. The issue is not appearing for every user and it is neither reproducible on our machine or test environment.

Can you please help or suggest any way to reproduce and resolve this issue.



Please make sure that your licensing code should run at least one time in the whole life cycle of your application, it looks like you are setting license for each user separately (threaded based etc.) or your code is not placed at correct location. Thus, the licensing code does not process at all for some users. Please make sure that licensing code should be run at least one time in your whole application life cycle, you should place the licensing code at a place where it should be processed first and fine before using any other APIs of Aspose.Cells component. For example, you may place the licensing code in global.asax file in the Application_Start event (for ASP.NET application).

Also, please see the document for your reference:

Let us know if you still find any issue.

Thank you.