file-association

This is a Windows software used for setting the default app for file extensions. This is because the default applications(app) set by the Windows system are often automatically switched. 这是一个Windows工具，用于设置文件扩展名的默认打开程序。而且还有规则空间功能，用户登录规则空间共享程序设计规则，并可以挑选评分最高的规则。file default master（文件默认大师）软件网站：https://3089464667.github.io/default-app/

mdview — a lightweight Markdown viewer for Windows, macOS & Android. Double-click any .md file to read it like a webpage; press F2 to edit in place. 3 MB installer, Rust + WebView2, 100% local. Website: www.mdview.top

Fix MIME file associations in Dolphin under Hyprland and KDE 6

File Type Icon Editor Tool for Windows. Change icons for any file type, restore default icons, customize file associations.

Make a custom file extension a real, recognised file type on Windows, Linux and macOS — from one spec file. Desktop app and CLI.

Set which app opens what on your Mac: file types, extensions, links, and extensionless files like .env and Dockerfile. Free and open source, for macOS 26 and later.

Cross-platform Markdown viewer for opening local .md files from Windows, macOS, and Linux desktops, rendered in your browser with syntax highlighting, themes, and linked-file navigation.

ObsidianShell 简体中文本地化与 Obsidian 1.13+ 兼容性修复版：双击任意 Markdown 文件在 Obsidian 中打开

Run scripts like native Windows apps — double-click JavaScript, PowerShell, Python, shell, and TypeScript files with interpreter detection and safety checks.

强力删除影音格式文件关联

Double-click any .md file to open exactly that file in Obsidian - no console flash, no popups, no admin rights

Lightweight Windows Markdown viewer — render .md files like GitHub on double-click.

File Assoc Export is a desktop utility. Export file associations for common extensions to a text snapshot.

Bambu 3D 文件关联管理器 — 原生 Win32 工具，让 Windows 资源管理器直接显示 3MF / STL / OBJ / STEP 等 3D 打印文件的缩略图预览。完全离线、免费提供（个人非商业用途）、卸载无残留。

Open every .3mf in the right slicer on macOS: reads the printer inside the 3MF and opens Bambu Studio, Snapmaker Orca, OrcaSlicer, PrusaSlicer or any slicer. Finder thumbnails + 3D Quick Look. Native Swift, zero dependencies.

View Gemcut Studio .gcs and GemCad .gem faceting designs straight from Windows Explorer - four shaded views plus the cutting instructions.

Open any Markdown file on macOS in Obsidian, not just files inside a vault

Double-click an archive to extract it next to itself with 7-Zip and send the archive to the Recycle Bin. Per-user Windows install, no admin.

A minimalist, text-based .download file format specification designed for clean automation, lightweight file associations, and seamless application deployment.

Fixes broken Windows file associations by clearing bad per‑user overrides so files open with the right apps again.