Converting any XLSX file to PNG results in multiple output files, although PagesCount is set to 1.
GroupDocs.Conversion 21.9.1 was used with .NET Framework 4.7.2 and the following code:
using (var conv = ne…...Png, //convert only the first page for thumbnail PageNumber = 1...SavePageStream getPageStream = page => new FileStream(string.Format("Thumbnail{0}...