diff --git a/aio/content/examples/accessibility/stackblitz.json b/aio/content/examples/accessibility/stackblitz.json
index f3ee46960b..e9852d4624 100644
--- a/aio/content/examples/accessibility/stackblitz.json
+++ b/aio/content/examples/accessibility/stackblitz.json
@@ -5,6 +5,5 @@
     "!**/*.js",
     "!**/*.[1,2].*"
   ],
-  "file": "src/app/app.component.ts",
   "tags": ["Accessibility"]
 }
diff --git a/aio/content/examples/animations/stackblitz.json b/aio/content/examples/animations/stackblitz.json
index bc7b0bc2f1..c39e11adda 100644
--- a/aio/content/examples/animations/stackblitz.json
+++ b/aio/content/examples/animations/stackblitz.json
@@ -5,5 +5,6 @@
     "!**/*.js",
     "!**/*.[1,2,3].*"
   ],
+  "file": "src/app/app.component.ts",
   "tags": ["animations"]
 }
diff --git a/aio/content/examples/architecture/stackblitz.json b/aio/content/examples/architecture/stackblitz.json
index c2d31783ea..dedea09cd2 100644
--- a/aio/content/examples/architecture/stackblitz.json
+++ b/aio/content/examples/architecture/stackblitz.json
@@ -5,5 +5,5 @@
     "!**/*.js",
     "!**/*.[1].*"
   ],
-  "file": "src/app/app.module.ts"
+  "file": "src/app/hero-list.component.html"
 }
diff --git a/aio/content/examples/attribute-directives/stackblitz.json b/aio/content/examples/attribute-directives/stackblitz.json
index 32e9661d60..0c60ff1eba 100644
--- a/aio/content/examples/attribute-directives/stackblitz.json
+++ b/aio/content/examples/attribute-directives/stackblitz.json
@@ -5,5 +5,6 @@
     "!**/*.js",
     "!**/*.[1,2,3].*"
   ],
+  "file": "src/app/highlight.directive.ts",
   "tags": ["attribute", "directive"]
 }
diff --git a/aio/content/examples/component-styles/stackblitz.json b/aio/content/examples/component-styles/stackblitz.json
index 53c9360839..7f8050448f 100644
--- a/aio/content/examples/component-styles/stackblitz.json
+++ b/aio/content/examples/component-styles/stackblitz.json
@@ -6,5 +6,6 @@
     "!**/*.native.*",
     "!**/*.[1].*"
   ],
+  "file": "src/app/hero-app.component.ts",
   "tags": ["CSS"]
 }
diff --git a/aio/content/examples/dependency-injection-in-action/stackblitz.json b/aio/content/examples/dependency-injection-in-action/stackblitz.json
index 20569051c1..7ba10e6ce5 100644
--- a/aio/content/examples/dependency-injection-in-action/stackblitz.json
+++ b/aio/content/examples/dependency-injection-in-action/stackblitz.json
@@ -5,5 +5,6 @@
     "!**/*.js",
     "!**/*.[1].*"
   ],
+  "file": "src/app/app.component.ts",
   "tags":["cookbook"]
 }
diff --git a/aio/content/examples/dependency-injection/stackblitz.json b/aio/content/examples/dependency-injection/stackblitz.json
index 131d2a671c..bb9b63d308 100644
--- a/aio/content/examples/dependency-injection/stackblitz.json
+++ b/aio/content/examples/dependency-injection/stackblitz.json
@@ -6,5 +6,6 @@
     "!**/*.[0,1,2,3,4].*",
     "!**/dummy.module.ts"
   ],
+  "file": "src/app/app.component.ts",
   "tags": ["dependency", "di"]
 }
diff --git a/aio/content/examples/displaying-data/stackblitz.json b/aio/content/examples/displaying-data/stackblitz.json
index 9f2f816f14..75b223fea5 100644
--- a/aio/content/examples/displaying-data/stackblitz.json
+++ b/aio/content/examples/displaying-data/stackblitz.json
@@ -6,5 +6,6 @@
     "!**/app-ctor.component.ts",
     "!**/*.[1,2,3].*"
   ],
+  "file": "src/app/app.component.ts",
   "tags": ["Template"]
 }
diff --git a/aio/content/examples/docs-style-guide/second.stackblitz.json b/aio/content/examples/docs-style-guide/second.stackblitz.json
index ca2bfdaf3b..8018275451 100644
--- a/aio/content/examples/docs-style-guide/second.stackblitz.json
+++ b/aio/content/examples/docs-style-guide/second.stackblitz.json
@@ -1,8 +1,11 @@
 {
   "description": "Second authors style guide stackblitz (non-executing)",
   "files": [
-    "src/index.2.html"
+    "src/main.2.ts",
+    "src/index.2.html",
+    "src/styles.css"
   ],
   "main": "src/index.2.html",
+  "file": "src/index.html",
   "tags": ["author", "style guide"]
 }
diff --git a/aio/content/examples/docs-style-guide/src/main.2.ts b/aio/content/examples/docs-style-guide/src/main.2.ts
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/aio/content/examples/dynamic-component-loader/stackblitz.json b/aio/content/examples/dynamic-component-loader/stackblitz.json
index 2b6c153129..20c7df3af9 100644
--- a/aio/content/examples/dynamic-component-loader/stackblitz.json
+++ b/aio/content/examples/dynamic-component-loader/stackblitz.json
@@ -4,5 +4,6 @@
     "!**/*.d.ts",
     "!**/*.js"
   ],
+  "file": "src/app/app.component.ts",
   "tags":["cookbook component"]
 }
diff --git a/aio/content/examples/dynamic-form/stackblitz.json b/aio/content/examples/dynamic-form/stackblitz.json
index 9dd6ff0236..19d8f8636a 100644
--- a/aio/content/examples/dynamic-form/stackblitz.json
+++ b/aio/content/examples/dynamic-form/stackblitz.json
@@ -5,5 +5,6 @@
     "!**/*.js",
     "!**/*.[1].*"
   ],
+  "file": "src/app/app.component.ts",
   "tags":["cookbook"]
 }
diff --git a/aio/content/examples/elements/stackblitz.json b/aio/content/examples/elements/stackblitz.json
index 512e5aca34..49208b186a 100644
--- a/aio/content/examples/elements/stackblitz.json
+++ b/aio/content/examples/elements/stackblitz.json
@@ -5,5 +5,6 @@
     "!**/*.js",
     "!**/*.[1].*"
   ],
+  "file": "src/app/popup.service.ts",
   "tags":["cookbook"]
 }
diff --git a/aio/content/examples/form-validation/stackblitz.json b/aio/content/examples/form-validation/stackblitz.json
index 80f399a6dd..485b5cb555 100644
--- a/aio/content/examples/form-validation/stackblitz.json
+++ b/aio/content/examples/form-validation/stackblitz.json
@@ -4,5 +4,6 @@
     "!**/*.d.ts",
     "!**/*.js",
     "!**/*.[1].*"
-  ]
+  ],
+  "file": "src/app/app.component.ts"
 }
diff --git a/aio/content/examples/forms-overview/stackblitz.json b/aio/content/examples/forms-overview/stackblitz.json
index b3eefdff14..7e702e1306 100644
--- a/aio/content/examples/forms-overview/stackblitz.json
+++ b/aio/content/examples/forms-overview/stackblitz.json
@@ -3,5 +3,6 @@
   "files":[
     "!**/*.d.ts",
     "!**/*.js"
-  ]
+  ],
+  "file": "src/app/app.component.ts"
 }
diff --git a/aio/content/examples/forms/stackblitz.json b/aio/content/examples/forms/stackblitz.json
index 9e0797f0e9..97d00244aa 100644
--- a/aio/content/examples/forms/stackblitz.json
+++ b/aio/content/examples/forms/stackblitz.json
@@ -3,5 +3,6 @@
   "files":[
     "!**/*.d.ts",
     "!**/*.js"
-  ]
+  ],
+  "file": "src/app/hero-form/hero-form.component.html"
 }
diff --git a/aio/content/examples/getting-started-v0/stackblitz.json b/aio/content/examples/getting-started-v0/stackblitz.json
index a1f0944d46..db1a643fa6 100644
--- a/aio/content/examples/getting-started-v0/stackblitz.json
+++ b/aio/content/examples/getting-started-v0/stackblitz.json
@@ -5,5 +5,6 @@
     "!**/*.js",
     "!**/*.[0-9].*"
   ],
+  "file": "src/app/app.component.ts", 
   "tags": ["Angular", "getting started", "tutorial"]
 }
diff --git a/aio/content/examples/getting-started/stackblitz.json b/aio/content/examples/getting-started/stackblitz.json
index a1f0944d46..7241f66482 100644
--- a/aio/content/examples/getting-started/stackblitz.json
+++ b/aio/content/examples/getting-started/stackblitz.json
@@ -5,5 +5,6 @@
     "!**/*.js",
     "!**/*.[0-9].*"
   ],
+  "file": "src/app/product-list/product-list.component.html",
   "tags": ["Angular", "getting started", "tutorial"]
 }
diff --git a/aio/content/examples/hierarchical-dependency-injection/stackblitz.json b/aio/content/examples/hierarchical-dependency-injection/stackblitz.json
index 7bb2331163..9e9a837faa 100644
--- a/aio/content/examples/hierarchical-dependency-injection/stackblitz.json
+++ b/aio/content/examples/hierarchical-dependency-injection/stackblitz.json
@@ -4,5 +4,6 @@
     "!**/*.d.ts",
     "!**/*.js"
   ],
+  "file": "src/app/app.component.ts", 
   "tags": ["dependency", "injection"]
 }
diff --git a/aio/content/examples/http/stackblitz.json b/aio/content/examples/http/stackblitz.json
index 5d24738b29..fdec14ad1a 100644
--- a/aio/content/examples/http/stackblitz.json
+++ b/aio/content/examples/http/stackblitz.json
@@ -3,10 +3,10 @@
   "files":[
     "!**/*.d.ts",
     "!**/*.js",
-
     "!src/testing/*.*",
     "!src/index-specs.html",
     "!src/main-specs.ts"
   ],
+  "file": "src/app/app.component.ts", 
   "tags": ["http"]
 }
diff --git a/aio/content/examples/lazy-loading-ngmodules/stackblitz.json b/aio/content/examples/lazy-loading-ngmodules/stackblitz.json
index e6ee97e1cf..91a87de480 100644
--- a/aio/content/examples/lazy-loading-ngmodules/stackblitz.json
+++ b/aio/content/examples/lazy-loading-ngmodules/stackblitz.json
@@ -5,6 +5,6 @@
     "!**/*.js",
     "!**/*.[1,2].*"
   ],
-  "file": "src/app/app.component.ts",
+  "file": "src/app/app-routing.module.ts",
   "tags": ["lazy loading"]
 }
diff --git a/aio/content/examples/ngmodules/stackblitz.json b/aio/content/examples/ngmodules/stackblitz.json
index 6bc4252b82..e72529c3e2 100644
--- a/aio/content/examples/ngmodules/stackblitz.json
+++ b/aio/content/examples/ngmodules/stackblitz.json
@@ -5,6 +5,6 @@
     "!**/*.js",
     "!**/*.[1,2].*"
   ],
-  "file": "src/app/app.component.ts",
+  "file": "src/app/app.module.ts",
   "tags": ["NgModules"]
 }
diff --git a/aio/content/examples/reactive-forms/stackblitz.json b/aio/content/examples/reactive-forms/stackblitz.json
index 5696d23db7..70d789bad3 100644
--- a/aio/content/examples/reactive-forms/stackblitz.json
+++ b/aio/content/examples/reactive-forms/stackblitz.json
@@ -11,5 +11,6 @@
     "!src/app/main-final.ts",
     "!src/index-final.html"
   ],
+  "file": "src/app/app.component.ts",
   "tags": ["reactive", "forms"]
 }
diff --git a/aio/content/examples/router/stackblitz.json b/aio/content/examples/router/stackblitz.json
index 4ffcac610b..043d2e7430 100644
--- a/aio/content/examples/router/stackblitz.json
+++ b/aio/content/examples/router/stackblitz.json
@@ -7,5 +7,6 @@
     "!src/app/crisis-list/*.*",
     "!src/app/hero-list/*.*"
   ],
-  "tags": ["router"]
+  "tags": ["router"],
+  "file": "src/app/app-routing.module.ts"
 }
diff --git a/aio/content/examples/security/stackblitz.json b/aio/content/examples/security/stackblitz.json
index e66527cb6b..b3e933d44c 100644
--- a/aio/content/examples/security/stackblitz.json
+++ b/aio/content/examples/security/stackblitz.json
@@ -4,5 +4,6 @@
     "!**/*.d.ts",
     "!**/*.js"
   ],
+  "file": "src/app/app.component.ts",
   "tags": ["security"]
 }
diff --git a/aio/content/examples/set-document-title/stackblitz.json b/aio/content/examples/set-document-title/stackblitz.json
index fb6cf810f9..a6bd93db64 100644
--- a/aio/content/examples/set-document-title/stackblitz.json
+++ b/aio/content/examples/set-document-title/stackblitz.json
@@ -5,5 +5,6 @@
 		"!**/*.js",
 		"!**/*.[1].*"
 	],
+	"file": "src/app/app.component.ts", 
 	"tags": [ "cookbook" ]
 }
diff --git a/aio/content/examples/structural-directives/stackblitz.json b/aio/content/examples/structural-directives/stackblitz.json
index ca13405583..1580621675 100644
--- a/aio/content/examples/structural-directives/stackblitz.json
+++ b/aio/content/examples/structural-directives/stackblitz.json
@@ -5,6 +5,7 @@
     "!**/*.js",
     "!src/app/scrap.txt"
   ],
+  "file": "src/app/app.component.ts",
   "tags": [
     "structural", "directives", "template", "ngIf",
     "ngSwitch", "ngFor"
diff --git a/aio/content/examples/toh-pt0/stackblitz.json b/aio/content/examples/toh-pt0/stackblitz.json
index c2cf48171f..28c0fc22ad 100644
--- a/aio/content/examples/toh-pt0/stackblitz.json
+++ b/aio/content/examples/toh-pt0/stackblitz.json
@@ -5,5 +5,6 @@
     "!**/*.js",
     "!**/*.[1].*"
   ],
+  "file": "src/app/app.component.ts",
   "tags": ["tutorial", "tour", "heroes"]
 }
diff --git a/aio/content/examples/toh-pt1/stackblitz.json b/aio/content/examples/toh-pt1/stackblitz.json
index 880b28fae6..0a0ffe97e5 100644
--- a/aio/content/examples/toh-pt1/stackblitz.json
+++ b/aio/content/examples/toh-pt1/stackblitz.json
@@ -6,5 +6,6 @@
     "!**/*.[1].*",
     "!**/dummy.module.ts"
   ],
+  "file": "src/app/heroes/heroes.component.html",
   "tags": ["tutorial", "tour", "heroes"]
 }
diff --git a/aio/content/examples/toh-pt2/stackblitz.json b/aio/content/examples/toh-pt2/stackblitz.json
index 8f3cefdaeb..5dfe10d293 100644
--- a/aio/content/examples/toh-pt2/stackblitz.json
+++ b/aio/content/examples/toh-pt2/stackblitz.json
@@ -5,5 +5,6 @@
     "!**/*.js",
     "!**/*.[1].*"
   ],
+  "file": "src/app/heroes/heroes.component.html",
   "tags": ["tutorial", "tour", "heroes"]
 }
diff --git a/aio/content/examples/toh-pt3/stackblitz.json b/aio/content/examples/toh-pt3/stackblitz.json
index c4ef78dc9f..cdc9087616 100644
--- a/aio/content/examples/toh-pt3/stackblitz.json
+++ b/aio/content/examples/toh-pt3/stackblitz.json
@@ -5,5 +5,6 @@
     "!**/*.js",
     "!**/*.[1].*"
   ],
+  "file": "src/app/heroes/heroes.component.html",
   "tags": ["tutorial", "tour", "heroes"]
 }
diff --git a/aio/content/examples/toh-pt4/stackblitz.json b/aio/content/examples/toh-pt4/stackblitz.json
index 1b3e442ac0..d026bfdb93 100644
--- a/aio/content/examples/toh-pt4/stackblitz.json
+++ b/aio/content/examples/toh-pt4/stackblitz.json
@@ -5,5 +5,6 @@
     "!**/*.js",
     "!**/*.[1,2].*"
   ],
+  "file": "src/app/hero.service.ts",
   "tags": ["tutorial", "tour", "heroes"]
 }
diff --git a/aio/content/examples/toh-pt5/stackblitz.json b/aio/content/examples/toh-pt5/stackblitz.json
index 17390ecfc6..337ef44618 100644
--- a/aio/content/examples/toh-pt5/stackblitz.json
+++ b/aio/content/examples/toh-pt5/stackblitz.json
@@ -5,5 +5,6 @@
     "!**/*.js",
     "!**/*.[0,1,2,3].*"
   ],
+  "file": "src/app/app-routing.module.ts",
   "tags": ["tutorial", "tour", "heroes", "router"]
 }
diff --git a/aio/content/examples/toh-pt6/stackblitz.json b/aio/content/examples/toh-pt6/stackblitz.json
index 777d9ad1f1..7116807f67 100644
--- a/aio/content/examples/toh-pt6/stackblitz.json
+++ b/aio/content/examples/toh-pt6/stackblitz.json
@@ -5,5 +5,6 @@
     "!**/*.js",
     "!**/*.[1,2].*"
   ],
+  "file": "src/app/hero.service.ts",
   "tags": ["tutorial", "tour", "heroes", "http"]
 }