A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Afternoon. Would like to add that I have been experiencing the same problem for awhile now and just found this thread.
Microsoft, you do need to look at this issue as the number of people reporting it is growing.
It does appear to be an issue with having more than 1-2 workbooks open. Again, that appears to be the case. When it does happen, there does not necessarily seem to be a rhyme or reason why, it just locks up. Click on another workbook, come back to the original one, and it unfreezes for the moment.
My warning signs, btw, are all of sudden, not being able to scroll with the mouse wheel, or not being to enter text into a cell.