Want to allocate more system memory for this program

[Experientiaa]

I'm trying to export 3850*2200 size spine animation to PNG sequence. And I know it's too big so I checked disk cache option.

Program slowly use more and more my pc RAM until it hits peak about only 4GB RAM. Then crash. I have 32GB capacity but I can't use more memory than 4GB on this program.

If is this a JVM program, I could use memory usage command line like -Xmx but I don't know how to do the same thing in this exe file.

If there any solutions that I can do, please teach me how. And thanks for making this program