Issue
Without realizing the user has saved these report files for a non-revenue meter (ION7350 for examples) in the HHF format, does not have MV90, and therefore cannot open nor recover this data.

Product
ION Setup 2.0 and later

Resolution
*Warning: Take backups of any files prior to modifying them. Ensure the backups are in a location that will not be overwritten (i.e. the Desktop).*
You can modify the default tables to enable the option of importing HHF files when viewing the logged data.
Below is an example for how to import an Energy and Demand report saved in HHF file format for an ION7350

1) Open the file Energy & Demand.pml in the [ION Setup install location]\Tables\PML7350\Version 2.0 Default\Data Recorders folder using notepad.exe or other text editor

2) Once the file is opened in Notepad, on the bottom of the page you will see the following parameters:

POPUPNUM=1
MENUITEM1=0,0,Filter Records

3) Change the POPUMNUM value and add the following line as shown below
POPUPNUM=2
MENUITEM1=0,0,Filter Records
MENUITEM2=2,0,Import HHF

4) Save the file and now when you open the Energy and Demand log in ION Setup, when you right-click on the screen you will have the option to Import and HHF file