The problem can occur when the Word file you are trying to open has a different file extension than the file you are attaching. It happens when you convert the file manually. There can be other ...
If you cannot open the Excel file from its location, simply open any Excel file and click the File tab. Then, go to Open > Browse and select the file giving error ...
If you need to know the exact location of a file on your Mac, you'll need its file path. And you'll probably want to copy the file path to your clipboard for later use too. Lucky for you, we know how ...