Decipher file?

I have a file with the ending .cisb

When I try it with z.b. Notepad ++ will open only such characters:

ËyŒÝ_îÁ ××× ÷÷ ôcYøN ¢ çqkμμýýtfôtlÖ-LM> "Ò

l4fÞdßßßNJR- @ HRJfJ> @ BFVμÁýýtlÒ "-M ± nû Û

Ò.ßßßÐNJ$JFPhfVXRF©§@Bj³Ñýýtl, Ò »÷ Moo ÛŸßßÐNJ \ L ^ ™ @ JdPBXhJ ££ ýýx8Ç ÷÷ Ogai% … '" ÂÄÕ ûû1lCØÃ… 0uMèž- ÷÷ Så-S2! É046ïS0) Ë7Ä2ÉSå. "VôÏëû KÞüÜ '+ ä + îää¼ÔÌÔž ÷÷÷ S250ÈÈ9ÅïÍ: ï92ËÆ AAE + Ì'ÔœÖýô [Ü' "ŒÔŽüôŽÇ ÷÷ S2 É0469ï0: 9ÌËÆ2Èè ÂÄ®îŽýäœô'kæü + ÜÔœœÔp · ÷÷ Så 1ea: E3 Â9Ü" KÞüÜ + îää¼ÔÌÔžüÜì3Þ · ÷ ÷ SåÍ: ïÈ41ËÅ9ï0ÎÎ0: 2èè ÿ?

Does anyone have an idea how I can read dat?

The file was created with an Item Editor for a plugin.

So it will have something to do with Minecraft.

Links to the editor: https://dev.bukkit.org/...ures/files

Then it will PROBABLY be read only if you open it with the editor or other programs.

I do not have the experience myself, but I would say you need the editor.

But the editor is limited and I would like to have a wider scope of possibilities. Otherwise no idea?

Do you think the editor does not have many options or what?
Otherwise I would just think that you'll do some research if there's another editor for it or you look for if you could edit with Notepad or other that maybe.