read azure blob as stream

GetBlobStream.cs

 using Azure.Storage.Blobs;
 using System.IO;
static internal MemoryStream GetBlobStream(string connectionString, string blobContainer, string blobName)
        {


            BlobServiceClient blobServiceClient = new BlobServiceClient(connectionString);
            BlobClient blobClient = new BlobClient(connectionString, blobContainer, blobName);
            var memoryStream = new MemoryStream();

            blobClient.DownloadTo(memoryStream);
            return memoryStream;
        }
        
        
        static internal List<string> ParseFileStream(MemoryStream memoryStream, string fileName)
        {

            string[] fileNameSplit = fileName.Split(".");
            string fileType = fileNameSplit[fileNameSplit.Length-1];
            if (fileType.ToUpper().Equals("CSV"))
            {

                memoryStream.Seek(0, SeekOrigin.Begin);
                TextFieldParser parser = new TextFieldParser(memoryStream);

                parser.TextFieldType = FieldType.Delimited;
                parser.SetDelimiters(",");
                // get header:

                string[] header = parser.ReadFields();

                while (!parser.EndOfData)
                {
                   // handle the file lines here
                }
                
             }
         }