You put the food in the freezer to preserve it.
And that is what happened....it has been preserved.
It is safe to eat. There is NO time limit on frozen foods.
The USDA says that frozen foods are safe to eat indefinitely.
If the food has some "freezer burn" ...it is still SAFE to eat.
It may (or may not) taste a little off. But; it is still SAFE to eat.
After being in the freezer for 5 or 10 or 20 years...the food
may (or may not) taste a little different than fresh; but it
is still SAFE to eat.
The frozen food charts that some people refer to are about QUALITY.
That means the food that has been frozen for a LONG time; may not
taste as good as fresh food from the store...but; it is still SAFE to eat.