How to Open XLR Files on Macs
The XLR file extension is associated with spreadsheets and charts created with Microsoft Works. Microsoft Works is only available for the Windows operating system and will not run on Macs. You can, however, open an XLR file on a Mac by using Microsoft Excel, which is compatible and available for both PCs and Macs.
Double-click the hard drive icon on your Mac desktop.
Double-click the "Applications" folder.
Double-click the "Microsoft Excel" application.
Click "File" from the top menu and then select "Open."
Click the ".XLR" Excel file of choice and then click "Open."