CZ-Xls2Pdf   
by ConvertZone   

CZ-Xls2Pdf is a batch pdf converter that convert microsoft excel xls to pdf files, you can convert a lot of files once time, saving your time!
Key Features
A. batch convert microsoft excel xls documents to pdf files quickly.
B. preserves original document layout, include images and tables.
C. support command line arguments.
D. can add the files in subfolders to convert.
E. supports drag files and folders from your desktop.
F. can create run log file.