using System.IO; string filePath = @"C:\example.txt"; int margin = 10; using (var reader = new StreamReader(filePath)) { string line; while ((line = reader.ReadLine()) != null) { string alignedLine = line.PadLeft(margin); Console.WriteLine(alignedLine); } }In this example, we are opening a file located at `C:\example.txt` and setting our margin to 10 spaces. We then read each line in the file with the `ReadLine()` method and use the `PadLeft()` method to add spaces to the left of the line to align it on the specified margin. Finally, we output the aligned line to the console. It's important to note that FileReader is not a package or library in C#, but rather a feature that is built into the language. The `System.IO` namespace provides classes like `StreamReader` and `StreamWriter` to read and write files in C#.