I have encountered the following sentence.
はあ なんすか？... なんやら手つづきがあるようだけど さっさとかたづけちゃってくれませんか。
I have searched meaning of the word on several web sites but I only found the meaning of 「なにやら」. I'm not sure if they are interchangeable.
In addition, can I replace the word 「あるよう」with 「ありさま」without losing the original meaning?