If you work with Excel, then an app like Total Excel Converter is a really useful tool to have in your kit. Total Excel Converter is able to convert nearly any type* of table into any almost any type** of format you need.
Key Features include:
Sign PDF files.
Fast & reliable.
User friendly GUI.
Command line support.
Total Excel Converter has some very handy configurable options. For instance, you can convert each sheet into a new file, and you can set definable user permissions for it. This, in turn, will protect your PDF files from being modified or copied without your consent. Another really useful function worth mentioning, is the ability to convert OpenOffice ODS format to Microsoft XLS format.
Overall,Total Excel Converter is a simple, useful app that does exactly what it says on the tin. It can make an exact duplicate of your original file, strictly preserving the document layout, so you always get an exact copy of the source file, in what ever supported format you choose.You can run conversions via the app's GUI or via a command line interface.