Hello!
I'm create xlsx from template, which contains some chart
string path = Path.Combine(Path.GetPathRoot(Environment.SystemDirectory), "Templates", "Charts.xlsx");
using FileStream stream = new FileStream(path, FileMode.Open, FileAccess.Read);
XlsxFormatProvider formatProvider = new XlsxFormatProvider();
using Workbook workbook = formatProvider.Import(stream);
But workbook doesn't contains any chart objects after importing from stream.
Why?