Extremely Challenging question - What reason for an Excel sheet to cause high CPU? (2010)

dikken20

Board Regular
Joined
Feb 25, 2009
Messages
130
Office Version
  1. 2010
Platform
  1. Windows
Hello,

I'm using an excel sheet which uses:
1. An external CSV raw data file
2. Other VBA functions/subs
3. Iterrative calculation
4. Conditional Ifs
5. Other common calculations.

The file indeed pretty big, yet, it was just ok until recently all of the sudden it uses 25% of CPU, Causing the Laptop to extremely heat and sometimes even freezes the laptop!
I think it is due to an endless calculations, meaning, it just keep calculating the entire sheets...
I can't think of what caused that, I removed subs or sheets that I added recently so just in case one of them causing that, but NADA - still high CPU and Laptop Heat and freezes.

Can you think of any reason for that to happened?
 

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