How to read text file by particular line separator character?

Question

Reading a text file using streamreader.

using (StreamReader sr = new StreamReader(FileName, Encoding.Default))
{
     string line = sr.ReadLine();
}
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Answer 1

Even though you said "Using StreamReader", since you also said "I my case, file can have tons of records...", I would recommend trying SSIS. It's perfect for what you're trying to do. You can process very large file and specify the line/column delimiters easily.