Hi,
Thanks for your inquiry.
From our record, we found you purchased Spire.PDF. Note the alone libraries (Spire.PDF and Spire.XLS) can't be used in the same project since they are not compatible with each other. If you need to use two products in your project, please use Spire.Office(now the latest version is
Spire.Office Platinum (DLL Only) Version:4.12.6). Please remove all the Spire dlls in your project then clean and build it, then reference corresponding dlls (Spire.License.dll, Spire.Pdf.dll, Spire.Xls.dll, Spire.Common.dll) from Spire.Office into your project. Or you could install the
Spire.Office 4.12.6 package via NuGet.
If the issue still exists, to help us better investigate it, please offer us a sample project which could reproduce your issue directly. You could upload it here or send us(
support@e-iceblue.com) via email.
Besides, sorry that we don't understand Spanish very well, please describe your issue in English next time.
Best wishes,
Amber
E-iceblue support team