Hex <--> int 17 August 2018 history edit C# https://www.rapidtables.com/convert/number/decimal-to-hex.html https://stackoverflow.com/questions/1139957/c-sharp-convert-integer-to-hex-and-back-again https://stackoverflow.com/questions/703019/convert-integer-to-hex-and-hex-to-integer Entity Framework PowerShell vCard split
