If you do a search in the Development forum, including the child forums, for posts with titles containing "Excel" you will find lots of useful information and sample code.
At this point we know virtually nothing of your requirement. It would be helpful to know some details, such as:
- What is your Progress version?
- What is your Excel version?
- Can you describe how you want your Excel spreadsheet to look or function?
- Can you describe what you have tried so far, if anything?
- Have you read the Progress manual OpenEdge Development: Programming Interfaces?
If not, read chapters 8 (Introduction to External Program Interfaces) and 14 (Using COM Objects in ABL).
- Are you familiar with the Excel Object Model for your version of Excel?
With more detailed requirements you may receive some more detailed assistance.