2D and text editing

VSCode
Open Source {text/code editor / IDE}, by Microsoft. Github Documentation and official site Documentation Github

File System and Search
Related settings.json items: // ### Ignore. [all of default, as of 1.56.2 2021-05]

//# Do not add to `Sidebar\Folders`/Explorer and Search / Hide //# Is set to show all "files.exclude": { "**/.DS_Store": false, "**/.git": false, "**/.hg": false, "**/.svn": false, "**/CVS": false },

//# Do not process by Search "search.exclude": { "**/bower_components": false "**/_basename_": { "when": "$(basename).md" } },

//# Do not add to "File Watching" "files.watcherExclude": { "**/.svn/**": true }

LibreOffice
Open Source Office Suite Source Code and official site

Supports:
 * ~PDF,
 * Microsoft® Office: .doc, .docx, .xls, .xlsx, .ppt, .pptx.

Apache OpenOffice
Office Suite. Not really Open Source, as require {access rights or details}/subscription. Official site

Supports:
 * ~PDF,
 * Microsoft® Office: .doc, .docx, .xls, .xlsx, .ppt, .pptx.