title: Read&Write an opened excel file in C# while it is being edited
body: <p>Good morning!</p>
  
  <p>I have been struggling with a problem for a few weeks and when it seemed that the worst part was solved, now I have a problem with an Excel file.</p>
  
  <p>What I want to do is to read and write an Excel file (Test.xls) by a program (Datahub), and at the same time, read and write the same Excel file by Unity3d using a C# script. I am using Bytescout Spreadsheet in C# to read/write from Excel. I have:</p>
  
  <p>-Cells with references from Datahub, which values are being updated constantly. These values need to be read by Unity3d using C#</p>
  
  <p>-Cells with values written by Unity3d using C#, which values are being read constantly by Datahub</p>
  
  <p>Datahub needs the excel file to be opened in order to read/write but on the other hand, Unity3d through C# needs the file to be closed.</p>
  
  <p>I have tried with a macro in the excel file to autosave it and in C# open the file and close it each time it reads/writes, but it does not work. I also tried to autosave it as a copy and in C# open that copy but it does not work either.</p>
  
  <p>Would you know how to face this problem? Thanks a lot! :)</p>