Excel Spreadsheet Coding -- 2

Job ID: 31962512

Budget: $30 – $250 USD

I require some MS Excel programming. Should be quite simple:
1). I have an Excel spreadsheet containing data across multiple columns and a few worksheets.
2). I have a PowerPoint document containing some embedded bar charts that were created from an embedded Excel Spreadsheet.

I need some data from 1). Excel spreadsheet to be mapped and migrated (hopefully automatically) to the Excel spreadsheet imbedded into the 2). PowerPoint document so that bar charts populate.

So I need 2-3 mapping examples done for me AND I need the step by step process & equation documented so I can replicate the process myself moving forward.