Hi,
you can achieve to write the .bat (batch file program in windows)
.bat program it will convert to xsl to .CSV format.
in process chain you can use the OS COMMAND option while creating process chain.
it will first trigger the bat file then it will trigger the excel files and info package.
now i am also working on same scenario now.
please find the below doc how to create the process chain using os command.
Thanks,
Phani.