How to read open excel file at C#

Question

I want to read already open excel file with C#. I am using this method but it can\'t read the excel file while the file is open in Microsoft excel.

FileStre         


        

Answer 1

You need to open it with FileShare.ReadWrite:

FileStream stream = File.Open("myfile.xlsx", FileMode.Open, FileAccess.Read, FileShare.ReadWrite);

See this answer.