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Aspose.Cells.CellsException: You are using an evaluation copy and have opened files exceeding limitation

We are getting this errror (Aspose.Cells.CellsException: You are using an evaluation copy and have opened files exceeding limitation.) after upgrading the version 8.7.2 to 20.9.0.

We have a valid license and initialized the license as below.
Aspose.Cells.License lic = new Aspose.Cells.License(); lic.SetLicense(ConfigurationManager.AppSettings[“asposeLicense”]);

In 8.7.2 with valid license everything was working good.

@sindhu0234,

Did you upgrade your subscription as well or you are still using older license? I am afraid, you cannot use older license with new version of Aspose.Cells for .NET. You need to get new license and then use with latest version of the APIs.

If you have already obtained new license but still you are getting this issue, kindly make sure that your licensing code should be processed first and at least once in the whole application life cycle. If you are doing it already yet getting this error, kindly do create a sample console application, zip the project (please exclude your license) and attach it here, we will check it soon.