Redington line (I think)?

My question needs a little set-up…

A few years ago a local sporting goods store built a new building and moved. Prior to the move they held a “moving sale”. Picked up a nice rod at 1/2 price. While rummaging through the rest of their fly fishing stuff I came across 2 empty Redington reel boxes. Inside each box was a coil of WF5F line and a coil of backing but no reel. (I assume the reels were display models they had sold off the shelf and the lines were left behind.) I asked if they would sell me the lines and I got them both for just a few bucks. Anyway, to tell the truth, I forgot I had these lines. They have been stored in a cool, dry, dark place for a few years.

Anyone have any thoughts as to whether these lines are still usable? Also, does anyone have any thoughts as to the quality od a “Redington” line? If it helps, they are white and as I said they are WF5F lines.

Thanks.

Royce;
Is there the designation marked anywhere on those lines that say “TT” by any chance?
If so, and “white”, they possibly could be “Wulff Triangle Taper” fly lines. Not a whole lot of fly lines made in white, but Wulff and Monic are two that are pretty widespread!?
There are others, of course, these could be anyone’s lines, but just two that come readily to mind!
As for “fishability”, they should still be good. I fish at times, with lines that are 6-7 years old and as long as their cleaned and stored properly,they’re fine.
I’d definitely treat them, FIRST, before trying them out. Even before lawn casting them. Use a good dose of “ZipCast” on them, or any decent line cleaner/conditioner.
(But,if anything, can bring them back to life, it’ll be ZipCast for sure!)