There was a security update for Excel that refuses html files marked with the .xls extension to open.
You can change a security setting to allow the files to open.
Open a blank doc in Excel
From the file menu select options
In the left column, click the trust center settings
Click the trust center settings button
In the left column, click protected view
Clear the first checkbox
Click ok
Click ok
You should be able to open the reports from PROFIT now.