If you only need to read the file, I can suggest Large Text File Viewer.
https://www.portablefreeware.com/?id=693
and also refer this
Text editor to open big (giant, huge, large) text files
else if you would like to make your own tool try this . i presume that you know filestream reader in c#
const int kilobyte = 1024;
const int megabyte = 1024 * kilobyte;
const int gigabyte = 1024 * megabyte;
public void ReadAndProcessLargeFile(string theFilename, long whereToStartReading = 0)
{
FileStream fileStream = new FileStream(theFilename, FileMode.Open, FileAccess.Read);
using (fileStream)
{
byte[] buffer = new byte[gigabyte];
fileStream.Seek(whereToStartReading, SeekOrigin.Begin);
int bytesRead = fileStream.Read(buffer, 0, buffer.Length);
while(bytesRead > 0)
{
ProcessChunk(buffer, bytesRead);
bytesRead = fileStream.Read(buffer, 0, buffer.Length);
}
}
}
private void ProcessChunk(byte[] buffer, int bytesRead)
{
// Do the processing here
}
refer this kindly
http://www.codeproject.com/Questions/543821/ReadplusBytesplusfromplusLargeplusBinaryplusfilepl
