Closed Unassigned: "Stream does not support seeking." [11988]

I am using a shell that calls a program that decrypts a file to StandardOutput.

Process process = new Process();
//... setup to run decrypter
process.Start();
IExcelDataReader excelReader = ExcelReaderFactory.CreateBinaryReader(process.StandardOutput.BaseStream);

Can there be a constructor that will handle non-seekable (StreamReader) Streams as well?

My constraints...
I don't want to write the sensitive data to file and the solution must handle large files (reading to memory first will not work).
Comments: created on github
https://github.com/ExcelDataReader/ExcelDataReader/issues/17