Create a table with values between from and to columns

Hi, Devon_Runner 

I used your information to create a table named Table:

Then try the following DAX expression to create a new table:

NewTable = 
SELECTCOLUMNS(
    ADDCOLUMNS(
        GENERATE(
            'Table',
            GENERATESERIES('Table'[Ref ID from], 'Table'[Ref ID to], 1)
        ),
        "Ref ID", [Value]
    ),
    "Group ID", 'Table'[Group ID],
    "Ref ID", [Value]
)

Here is my preview:

How to Get Your Question Answered Quickly

Best Regards

Yongkang Hua

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.