find the size of a csv file in csharp

To find the size of a CSV file in C#, you can use the System.IO namespace and the FileInfo class. Here's an example:

main.cs
using System.IO;

// ...

string filePath = "path/to/your/file.csv";
FileInfo fileInfo = new FileInfo(filePath);

long fileSizeInBytes = fileInfo.Length;
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In this example, we create a FileInfo object using the path to our CSV file. We can then get the size of the file in bytes using the Length property of the FileInfo object.

Note that this method will give you the size of the file in bytes. If you want to display the size in a more user-friendly format (e.g. "2.3 MB"), you'll need to write some additional code to convert the byte size to the appropriate format.