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Just getting three question marks

No matter what I do I keep just getting three question marks on my screen when trying to convert XLSX, XLS, CSV to HTML.

Hi,

Thanks for your posting and using Aspose.Cells.

Please download and try the latest version:
Aspose.Cells for .NET v8.7.2.4 and see if it makes any difference.

May be you are facing the fonts issue. Please provide us your sample code and some screenshots highlighting your issues with red circles around the problematic areas. It will help us evaluate your issue more closely and precisely and we will update you asap.