Microsoft Excel 365 HUGE Memory Leak (50 GB RAM)

ExcelClaro I've been observing the same behavior for a while on files simpler than what you describe. In addition to the sudden memory spike, the video freezes. One of the triggers seems to be switching tabs -- perhaps while a previously invoked operation hasn't finished. However, other triggers exist that I haven't been able to identify. Fortunately, saving is possible, and I'm able to close Excel by clicking the X in the upper right of the window. However, the problem is annoying. A fix would be great.

Here's my setup:

OS: Win 10 21H2 Build 19044.1889

Processor: Intel(R) Core(TM) i9-9980XE CPU @ 3.00GHz 3.00 GHz (18 physical cores)

RAM: 128 GB

Video Card: NVIDIA GeForce RTX 2080 Ti running 3 4k displays via Display Port

Excel 365 Version: 2207 Build 15427.20210