"Cannot open Excel workbook. The Excel workbook cannot be found. Please check if the workbook is del

Hi, 

I have read a thread of the same community with the same problem. Here is the link. Although in the thread it seems it was not resolved but when I tried the solution of the engineer, it worked for me. 

What I did is that when I was redirected on the problem tab, in the last part of the url change the false to true. Hit ENTER after changing and you will redirected to a new Excel online file.

Hope this helps.