Modern panels (like Fontself or GuideGuide) use .zxp files.
Always download plugins from the official developer's website. Torrented plugins are the #1 way to get malware that steals your Adobe login or Bitcoin wallets. Adobe Photoshop Plugins
| Plugin | Best for | Price | |--------|----------|-------| | | Advanced grid & guide creation | Free | | Better File Info | Bulk metadata editing | Free | | Export Kit | Convert PSD to HTML/CSS | Freemium | Modern panels (like Fontself or GuideGuide) use