Check if the values in a csv file is integer or string

Hey,

I have a csv file:

My code till now:

public static class Function1
{
[FunctionName("Function1")]
public static void Run([TimerTrigger("0 */5 * * * *")] TimerInfo myTimer, ILogger log)
{
log.LogInformation($"C# Timer trigger function started at: {DateTime.Now}");
Thread.Sleep(2000);
log.LogInformation($"C# Timer trigger function completed at: {DateTime.Now}");
var path = @"C:\Users\sandurpr\Desktop\C# Programming....COA-Blanket-TB.csv";
var csvData = File.ReadAllText(path);

Requirement:

the above code reads the csv file.

i want it to check if the values in the csv file is numeric or string. e.g if numeric then true else not true .

Thank you