Read the sample from the sas7bdat file in R

Question

I have a sas7bdat file about 80 GB in size. Since my computer has 4 GB of memory, the only way I can see is to read some of its lines. I tried using the sas7bdat package in R, which gives the error “big end files are not supported” The read_sas () function in the harbor seems to work, but the function only supports reading specific columns when I need to read any subset of rows with all columns. For example, it would be nice if I can read 1% of the data to figure it out. Is there any way to do this? Any package that can work? Later I plan to read parts of the file and divide it into 100 or so sections