To get a total combined Fasta file from nr.gz file

Hello,

I am trying to get a combined Fasta file for all the sequences that are present in the nr database.
For that I have downloaded the nr database from ftp.ncbi.nlm.nih.gov/blast/db/FASTA/nr.gz.

I have unzipped the nr.gz file and then I have got a single nr file which is a binary file of 131.9 GB.
I want to have all these files as a fasta File (.fasta file). How can I get that? Please suggest.

Thanks