Many Qlik Sense users also use Excel a lot. Typically they would explore the data in Qlik Sense and then transfer it to an Excel spreadsheet and continue working with, perhaps adding calculation, use multiple datasets etc.
You can export from Qlik Sense to an Excel file, that's included in the product. But if you want something more powerful, you should take a look at an Excel add-in which we have published in Microsoft AppSource: Add Sense for Excel.
The add-in works the other way: instead of exporting your dataset to an Excel file you work in Excel:
place the cursor where you want the dataset
connect to the Qlik Sense app (only need to do this once per app)
select the visualization from a dropdown and click 'Insert'
the add-in creates an Excel table with the dataset you selected
it also saves metadata about the data you inserted, like what app it was from, when that app was reloaded and what selections were made
Some advantages of this approach:
data is in an Excel table, so you can work with it like a table
you can have multiple datasets in the same sheet, put them side-by-side for comparison, have different selections for different datasets etc
you can add formulas and Excel visualizations
The add-in support Excel online, Excel 2016 and Excel 2016 for Mac. A free 30 day trial is available.