Epplus 4.5.3.2 (1080p 2027)

// Number formatting ws.Cells["B2"].Value = 0.12345; ws.Cells["B2"].Style.Numberformat.Format = "0.00%"; // 12.35%

Thus, is the last safe harbor for companies wanting to generate complex Excel reports without purchasing a commercial license. epplus 4.5.3.2

: This version includes a calculation engine that supports over 100 Excel functions, allowing developers to calculate cell values within the code before saving the file. // Number formatting ws

Compatible with .NET Framework 4.0+ and .NET Core 2.0+. // Number formatting ws.Cells["B2"].Value = 0.12345