Convert xlsx to csv in Linux with command line

Question

I\'m looking for a way to convert xlsx files to csv files on Linux.

I do not want to use PHP/Perl or anything like that since I\'m looking at processing several mill

Answer 1

Another option would be to use R via a small bash wrapper for convenience:

xlsx2txt(){
echo '
require(xlsx)
write.table(read.xlsx2(commandArgs(TRUE)[1], 1), stdout(), quote=F, row.names=FALSE, col.names=T, sep="\t")
' | Rscript --vanilla - $1 2>/dev/null
}

xlsx2txt file.xlsx > file.txt