Front Wheel Axle/spindle Stuck

So I can only assume that unscrewing the spindle has spread the fork legs. I would screw it back in then put a ratchet strap through the wheel and around the fork legs as close to the spindle as possible to prevent any spread. Then try screwing the spindle out again.

 

Every tool kit should have one of these!

https://www.screwfix.com/p/thor-sup...VRLDtCh2cWw0uEAQYASABEgL6RfD_BwE&gclsrc=aw.ds

Or use a hardwood drift...

 

I suspect that the spindle is stuck in the bearing that's why it spins.try get some WD40 in to the bearing.Try finding something round the same size as the hole on the fork leg and give it a tap but don't smash it to bits.

 

In case anyone else has this issue, here's what I did when I had this issue.

When removing the spindle I realised it had come free from the thread, but spreading the fork and would not allow me to remove it any further.
This turned out to be a seized spacer on the spindle shoulder (right side). This was due to me getting the spacers mixed up and putting them in the wrong side. When comparing the spacers, one was ever so slightly smaller in diameter (the new spacers are now exactly the same).
In order to remove the spindle I had to smack the axle out. Took time and unfortunately a lot of effort. The hardest part is finding something with a similar diameter to the spindle to fit in the hole. (Find something which won't ruin the end of the spindle or gouge away at the threads).
With some patience it came free, but was a two person job. Just make sure the spindle has cleared the threads before hitting.