Chain rookie help

[T-Dozzer]

Hello experts,
I normally use all round ground chains & have ended up with some square ground chains. I'm in a bind now as I need to finish a chainsaw milling project for some shelving.
I must have misunderstood the shop when ordering over the phone, but I know I told them I would need to round file to sharpen.
My question is: after I use this chain to rip a few slabs & it needs sharpened, do I try & reshape to round with a handfile or my timberline? Or will it need to be round ground with a grinder first?
Im in Washington state so most businesses are still closed down.

 

[RED-85-Z51]

Is that square ground? It looks round but its hard to tell

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[T-Dozzer]

Is that square ground? It looks round but its hard to tell

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[T-Dozzer]

Better angle maybe

 

[Ryan'smilling]

You can file it with a round file. It'll be a bit more work the first time than sharpening a regular basis RS chain, but not the end of the world, and after that you're back to a regular chain.