Can't open a nexus file.

[Jia21]

Hi,

I just want to open a nexus file using the Mesquite. The size of file is nearly about 1.8G.
I used the command line below to increase the allocated memory for Mesquite.
java -Xmx8000M -Xss4m -d64 -Djava.library.path=lib -cp . mesquite.Mesquite

However, it didn't work, it gave me the error message as:
OutOfMemoryError in readLine (sB.length() 0 remnantString.length() 0) . See file memory.txt in the Mesquite_Folder.

Can someone help me fix this problem?

Thanks
Jia