VBA to Control Formula Calculations

Hi,

I have a really large file (~160MB) that takes forever when I calculate the formulas. Currently, I have the Excel Options set to manual calculation. I have been using CTRL+ALT+F9, SHIFT+F9, and F9 to calculate but it can still take a while.

I need some VBA that gives me greater flexibility so I can calculate specific cells faster. For example, if I could calculate just a range of cells or just calculate cells without dependencies, etc. Any help you can provide would be much appreciated!

Thanks!!
John