Windows application error message

T

Tony Tong

There were 5 excel workbook opened and the following error message poped up:

The instruction at "0x77f87eeb" referenced memory at "0x00000064". The
memory could not be "read".

The only option is to clikc OK to terminate the program and all 5 books were
not saved.

What is the problem and how to prevent it from happening again?

Thanks
 
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