Hi guys, I have created a macro-enabled workbook in excel version 2010,
and i have to open it to another computer that is lower in version which is excel 2007 ,
and it prompts an error message "Error 91 (Object variable or With block variable not set)"

I have read that there are some compatibility issues of opening excel from newer version to lower versions.

but my excel contains macros which automates grading computation.

Please help ExcelMVPs Thanks a lot!!!

Hope to hear from experts