Splitting a file into many files depending on a string

I am reading a DAT file that has the following format.

XCVR TX K-FACTOR CORR|DC|INFO||0.836709|PASS|1
VERSION TEST|0|GREATER THAN||1141001|PASS|1
END-OF-LINE
VERSION TEST|0|GREATER THAN||1141001|PASS|1
END-OF-LINE

END-OF-LINE
Records=3

It can has as many end of lines as it can. So the idea is to split when it finds End-OF-LINE

and put the result in a csv file. I have to do it in 1 Method.

The split works, but it shows only 2 generated CSV files. The first one is the one that contains the data before the first end-of-line comes and the second file is the one before the last end-of-line. I need to open a new streamwriter everytime it finds the string: END-OF-LINE. What is missing in this code:

I do not know how to generate each time a split occurs. Thanks in Advance

using (System.IO.StreamWriter file = new System.IO.StreamWriter(filepath))
{
while (!((lines = reader.ReadLine()).Contains("END-OF-LINE")))
{
foreach (string line in lines.Split('|'))
{
if (line.Contains("END-OF-LINE"))
{
StreamWriter xx = new StreamWriter(path);
xx.WriteLine(line);
}
}
// Do operations on the file and then comes the splitting
//////////////////////////////// Splitting the file ///////////////////////////////
int h = 0;
System.IO.StreamWriter outfile = null;
try
{
using (var infile = new System.IO.StreamReader(fileName))
{
while (!infile.EndOfStream)
{
lines = infile.ReadLine();
if (lines.Contains("END-OF-LINE"))
{
if (outfile != null)
{
outfile.Dispose();
outfile = null;
}
continue;
}
if (lines.Contains("Records"))
{
break;
}
while (outfile == null)
{
outfile = new System.IO.StreamWriter(string.Format(path, h++),
false,
infile.CurrentEncoding);
}
outfile.WriteLine(lines);
}
}
}
finally
{
if (outfile != null)
outfile.Dispose();
}
} // To close using