title: How to open Excel file stored in byte[] via OleDB?
body: <p>I have one question and I'm hoping it's an easy one for you.
  (Windows Forms Application, C#, Framework 3.5, SQL Server 2008 R2)</p>
  
  <p>I don't know how to open Excel (it is loaded in byte[] type) via OleDB. </p>
  
  <p>So, what have I done:
  I have uploaded Excel (.xls(x)) file via form, and saved it in a database as varbinary(max). Now I need to read that Excel file via oleDB. I've managed to load that file from database and saved it into byte[] variable. How can I open byte[] in oleDB?
  When I uploaded file for the first time (before saving it to the database), I've opened it via OleDB with just passing file path. How can I access Excel's data when it is already stored in memory as byte[]?</p>