Error-2147221080 In trying to write to excel

[FIT Engineering]

Any ideas as what to do to fix this error?  Picture of error message attached.

We are trying to write to excel with variable cell location dependent on while loop iteration.

This is a small view of what we have tried to do.  Any help as to what we are doing wrong or other approaches that we should take are much appreciated.

[Wayne.C]

The "New Report.vi" has a terminal named "display alerts ?".  It defaults to false.  Use a constant to set it to true.  This will allow Excel to pop up prompts and alerts.  Usually an "undefined" error also results in a warning or prompt from Excel that will help debug the problem.  Be aware that the popup can sometimes end up buried under all the other windows that are open.