Hi Buffy201,

Thank you for writing to the Dell Community Forum.

You will have to install the Dell Digital Delivery to reinstall Microsoft office back on your system.

If you paid for office you should have the Microsoft Product Identifier Key Card with your Office Key. If you have lost this you will have to buy office over again.

You can download the Office directly from microsoft.  You cannot activate and install without this key.

Here Are The Download Locations for Office 2010 and Office 2007

Microsoft Office 2010 Download Locations

A.  Full Retail (FPP):  http://office.microsoft.com/en-us/products/microsoft-office-2010-backup-FX101853122.aspx

B.  Product Key Card (PKC):  http://office.microsoft.com/en-us/buy/using-the-product-key-card-FX101853163.aspx

 

Microsoft Office 2007 Download Locations

A.  Full Retail (FPP):  http://www.microsoft.com/office/downloads/

B.  Medialess Licensing Kit (MLK):  http://trial.trymicrosoftoffice.com/msft-orpc/