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.