What is the most robust way to open file and read content [closed]

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I usually do this when I have to read the whole file always:

using (var fileStream = File.OpenRead(...))
  using (var reader = new StreamReader(fileStream))
     var content = reader.ReadToEnd();

Any better/faster way?

---

string content = System.IO.File.ReadAllText(@"your file path");

If you want to get lines:

string[] lines = System.IO.File.ReadAllLines(@"your file path");

if you want to only read lines until get to some line then use the IEnumerable ReadLines:

foreach(string line in System.IO.File.ReadLines(@"your file path")
{
    if (line == ...)
    {
        break;
    }
}