wget https://github.com/libxls/libxls/releases/download/v1.6.2/libxls-1.6.2.tar.gz
tar -xzvf libxls-1.6.2.tar.gz
cd libxls-1.6.2
./configure
make
sudo make install
Add libxls lib path to LD_LIBRARY_PATH
Create a new /etc/ld.so.conf.d/libxls.conf
sudo vi /etc/ld.so.conf.d/libxls.conf
// Add path of libxls to this file
/usr/local/libxls/lib