I am using the following R code (that utilizes the Java parameter to increase memory as well):

```
library(xlsx)
options(java.parameters = "-Xmx1g")
library(XLConnect)
NiVe <- read.xlsx("version1.xlsx",1)

```

The `version1.xlsx` file is 13 MB in size. I get the following error:

```
Error in .jcall("RJavaTools", "Ljava/lang/Object;", "invokeMethod", cl,  : 
  java.lang.OutOfMemoryError: Java heap space

```

Can someone help?