error 97 Null Refnum as input

[IBAHKA]

Hello,
I am reading values from an XL file and am getting error 97 when I run the program. When I go through teh program step by step, I don't have this error. I will attach my prorgam.
Thank-you,
IBAHKA

ps- hw do I add more than one file to a message?

[IBAHKA]

here's another file

[IBAHKA]

here are two more error messages that I receive:

Error -2146827284 occurred at Exception occured in Microsoft Excel, '' could not be found. Check the spelling of the file name, and verify that the file location is correct.

If you are trying to open the file from your list of most recently used files on the File menu, make sure that the file has not been renamed, moved, or deleted.. Help Path is C:\Program Files\Microsoft Office\Office\1033\xlmain9.chm and context 0 in Open New WorkBook1.vi->Write Value to XL file.vi->Front Panel- Dec 12.vi

This error code is undefined. No one has provided a description for this code, or you might have wired a number that is not an error code to the error code input.



Error -2146827284 occurred at Unknown System Error in Open New WorkBook1.vi->Write Value to XL file.vi->Front Panel- Dec 12.vi

This error code is undefined. No one has provided a description for this code, or you might


Perhaps this can help? Thanks, Ivanka