It has been a month since I upgraded to MS Office 2008 and 4Gb RAM instead of 2Gb. Since that time, I have not had a single crash of Excel or any other Office component. To all of you who helped with this problem, I owe a great big thank you! It's a privilege for me to be a member of this forum.
Mac Pro dual Quad-Core Intel Xeons Early 2008; 16GB RAM; MacOS X 10.11.6, iOS 9.3.5
