From time to time, one of our colleagues was getting this error:
(sorry, this error message is in Dutch, but I think it must be something as "unsufficient resources to complete this task" in English)
We have spent hours searching for this problem. Reinstalling Office, enabling/disabling plugins, Windows safe-mode, etc, etc, ...
We findly found the cause of this stupid error message ...Windows Explorer Preview Pane! This pane provides a quick preview on Excel documents in Windows Explorer. Our colleagues were using this option, but as of very large Excel files, Excel seems to be crashing on this issue.
It's very import to hide this pane :-)