How to Clear Application Data on Macbook Pro?

When I checked how much storage space I have on my mac, it shows that I have 99.3 GB of Applications. I checked the few applications I have in my Applications folder, and I'm positive it doesn't add up to 99 GB. How do i clear up this excess data?

First you have to identify what that data is.  I suggest downloading from the Internet OmniDiskSweeper (free).  it will show all of your files and the respective sizes.  Delete or transfer files you feel you no longer need.
Ciao.

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