Lightning is brand new. Like SUPER SUPER new, so not all the features in Salesforce Classic are available in Lightning. Today on twitter, I learned that one of those “unavailable” features/functions, is the ability to export reports.
Now, I’m not saying you can’t get your data in Lightning; you can of course use the DataLoader, or the super cool Pilot for Salesforce Reports for Excel, or some other app, but the quick and easy “Export Report” button, is not there… yet.
UPDATE – May ’16
Voting really does make a difference. Be active in the community, plus it’s fun!
5/16: The Summer ’16 Release Notes are out, and word is we can export reports as .xls and .csv files in Salesforce Lightning. WooHoo!