Before downloading
Make sure your Excel software meets the minimum requirements. You can use the iOLab extension for Excel with Excel 2013 or higher or Excel Online.
Download from within Excel
Open a new sheet in Excel. Locate the app store in Excel under the Insert menu. Your interface may look slightly different depending on your version of Excel. You may need to click on My Add-Ins or Office Add-Ins before accessing the store.
Excel 2016
Excel Online
Search for and add app
Use the search field to search for iOLab in the store. Click Add next to IOLabApp in the results list.
Log in and view data
The app will open inside Excel. Login to the repository to view your imported data.
Show data in sheet
Expand data in the list by clicking on it (anywhere but the title). Then click the curved arrow icon to show data in the sheet. 
Note: Any time you close Excel and re-open it, you will have to open this app again from the Add-Ins menu.