Currently, the valid value types are numerics ( int, double, float, byte, decimal, short, long, sbyte, ushort, uint, ulong), string, DateTime, TimeSpan & bool.
The default value is null.
Please note that loading an xlsx workbook will read the numeric values as double.
Also note, that the maximum number of characters for a Cell's value is 32767.
.NET: net5.0, net5.0-windows, net6.0, net6.0-macos, net6.0-windows, net7.0, net7.0-macos, net7.0-windows, net8.0, net8.0-browser, net8.0-macos, net8.0-windows, net9.0, net9.0-browser, net9.0-macos, net9.0-windows, net10.0, net10.0-browser, net10.0-macos, net10.0-windows.
.NET Framework: net40, net403, net45, net451, net452, net46, net461, net462, net463, net47, net471, net472, net48, net481.