[development] Newbie Drupal 7 - Creating Attendence by user access

[Iain Wiseman]

Hi,

I have list of people who attended meetings who have a drupal account.

I wish to
- Upload a speadsheet with the attendence
- Display to the users which have an account which meetings they attended
- These events are not in drupal calendar

I have reasonable knowledge of php/html and databases but no knowledge 
of drupal.

Where do I start? (Please be gentle)

Thanks,
Iain