What the hell is a ".webp" file? How can I convert it into a PNG?

So I was gunna Upload and Tag all of the first “Trouble” comic by takagi kyou (高木喬) – I realized while looking at the old saved folder I snagged from Wildcritters almost a decade or more ago – it only goes up to 20 pages, I found an upload here that has all 38 pages of it (omfg, do I REALLY wanna sit here and tag and upload for 38 pages? Gawd damn!!!! I’ll go crazy!)

Well I ran into an unfortunate problem…. so even if I wanted to sit and do all that, I can’t do it anyway! The files in the Zip I downloaded from the link below are all in “.webp” format, and I have no idea what format that is. I tried opening it in Photoshop in the hopes that maybe - just maybe, it would know what format it is and I could convert them to PNG files one by one, but Photoshop just gives me an error when I try loading the files.

BlueSky can upload them and they show up as an actual picture there, but right now that is useless to me, cuz I just want to convert the files into PNG files…

……………………………………………………………….

What is the solution? Is there some way to Batch Convert a bunch of .webp files to .PNG files?

It’s an image format that Google created - ostensibly to reduce image file sizes so that higher resolution images don’t gorge themselves on expensive server space, but it’s annoying as fuck because they still aren’t necessarily universally recognized and I run into problems like this from time to time where a piece of software I want to use just refuses to recognize them as anything but gibberish lol

Just use Paint. No, literally, I’m serious - just use Paint. I dunno’ why PS has such a hissy fit about them, but whenever I need to convert a webp over to something else I always just “Save As” in MS Paint to do it. Haven’t had an issue yet, even if that does mean I have to go in and manually re-save every individual image.

@Background Pony #02AA
Whoops forgot to log in, but there you go lmfao

Fuuuuuuuuuuuuck…. well, it’s great that MS Paint will do the conversion, but not great that I’ll be stuck doing this – page by page – for 38 entire pages…

Yeah, if I ever figure out a way to do it in batches, I’ll let you know! Manually doing it is beyond painful lmfao

I am still using Windows 10, so my particular install lacks support for .webp

>>> https://ibb.co/pRmSN7w <<<<

I found a website that will do Batch Conversion, but you have to pay for “credits” lol….

It would only do 1 to 14 out of the 38 pages of the “Trouble” doujin comic

then says “you have ran out of credits.” LOL… if I want 15 to 38, I gotta buy more credits.