Message="Error: Invalid file signature" Source="Excel" StackTrace: at Excel.Core.XlsHeader.ReadHeader(Stream file) at Excel.ExcelDataReader..ctor(Stream fileStream, Boolean promoteToColumns) at Excel.ExcelDataReader..ctor(Stream fileStream) at DPWebLib.PriceSticker.VAuto.UpdateFromVAuto(Int32 dea...
using (var excelFile = File.Open(kvp.Value, FileMode.Open, FileAccess.Read)) using (var excelReader = ExcelReaderFactory.CreateBinaryReader(excelFile)) I get: Message = "Invalid file signature." StackTrace = " at ExcelDataReader.ExcelReaderFactory.CreateBinaryReader(Stream fileStream, ExcelReader...
Greetings. First of all, let me thank you for this nice piece of code -- apart from this particular case, it just works with any other file I tried, without the need for an OleDb provider. Now, onto this one: I have this "xls" file I nee...
2 Methods same signature but different return types 255 character limit OleDB C# - Inconsistent results 2D Array read from Text file 2D array to CSV C# steamwriter 3 dimensional list in C# 32 bit app - how to get 'C:\program files" directory using "Environment.GetFolderPath" 32 bit Applicat...
Excel.Exceptions.InvalidHeaderException was unhandled by user code Message="Error: Invalid file signature" Source="Excel" StackTrace: at Excel.Core.XlsHeader.ReadHeader(Stream file) at Excel.ExcelDataReader..ctor(Stream fileStream, Boolean promoteToColumns) at Excel.ExcelDataReader..ctor(Stream fileSt...
Check file signature? Check folder read write rights .net Core check for Drive Exists check for file path on remote server using different user name and password. check for lower or uppercase of .contains(string) Check for neighbouring cells in a 2D array Check if .dll's are obfuscated!