Microsoft Excel 2010
It's true - Excel now has a built-in PDF writer! PDF is the most universally accepted document format (meaning most computer users will be able to view/read/print your document without the necessity for having the originating program installed on their system). To open a PDF document, users simply need to download a free copy of Adobe Acrobat reader (available at www.adobe.com).
To save a document in PDF format:
You don't have to save a document as a PDF in order to send it in a PDF format.To send an Excel Workbook in PDF format in an email:
An email is created using your default email editor (e.g. MS Outlook) and a copy of the document in PDF format is attached to the message. Compose and send as usual. Also refer to the Save & Send article.