diff --git a/css/properties/-ms-grid-columns.json b/css/properties/-ms-grid-columns.json
deleted file mode 100644
index 69ff84bc450822..00000000000000
--- a/css/properties/-ms-grid-columns.json
+++ /dev/null
@@ -1,54 +0,0 @@
-{
-  "css": {
-    "properties": {
-      "-ms-grid-columns": {
-        "__compat": {
-          "support": {
-            "chrome": {
-              "version_added": false
-            },
-            "chrome_android": {
-              "version_added": false
-            },
-            "edge": {
-              "version_added": "12",
-              "version_removed": "16"
-            },
-            "firefox": {
-              "version_added": false
-            },
-            "firefox_android": {
-              "version_added": false
-            },
-            "ie": {
-              "version_added": "10"
-            },
-            "opera": {
-              "version_added": false
-            },
-            "opera_android": {
-              "version_added": false
-            },
-            "safari": {
-              "version_added": false
-            },
-            "safari_ios": {
-              "version_added": false
-            },
-            "samsunginternet_android": {
-              "version_added": false
-            },
-            "webview_android": {
-              "version_added": false
-            }
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": false,
-            "deprecated": true
-          }
-        }
-      }
-    }
-  }
-}
diff --git a/css/properties/-ms-grid-rows.json b/css/properties/-ms-grid-rows.json
deleted file mode 100644
index 105702ff0f88b4..00000000000000
--- a/css/properties/-ms-grid-rows.json
+++ /dev/null
@@ -1,54 +0,0 @@
-{
-  "css": {
-    "properties": {
-      "-ms-grid-rows": {
-        "__compat": {
-          "support": {
-            "chrome": {
-              "version_added": false
-            },
-            "chrome_android": {
-              "version_added": false
-            },
-            "edge": {
-              "version_added": "12",
-              "version_removed": "16"
-            },
-            "firefox": {
-              "version_added": false
-            },
-            "firefox_android": {
-              "version_added": false
-            },
-            "ie": {
-              "version_added": "10"
-            },
-            "opera": {
-              "version_added": false
-            },
-            "opera_android": {
-              "version_added": false
-            },
-            "safari": {
-              "version_added": false
-            },
-            "safari_ios": {
-              "version_added": false
-            },
-            "samsunginternet_android": {
-              "version_added": false
-            },
-            "webview_android": {
-              "version_added": false
-            }
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": false,
-            "deprecated": true
-          }
-        }
-      }
-    }
-  }
-}
diff --git a/css/properties/grid-template-columns.json b/css/properties/grid-template-columns.json
index 0879c586eed4b2..f5dc608abe275c 100644
--- a/css/properties/grid-template-columns.json
+++ b/css/properties/grid-template-columns.json
@@ -33,9 +33,16 @@
                 ]
               }
             ],
-            "edge": {
-              "version_added": "16"
-            },
+            "edge": [
+              {
+                "version_added": "16"
+              },
+              {
+                "alternative_name": "-ms-grid-rows",
+                "version_added": "12",
+                "version_removed": "79"
+              }
+            ],
             "firefox": [
               {
                 "version_added": "52"
@@ -69,7 +76,8 @@
               }
             ],
             "ie": {
-              "version_added": false
+              "version_added": "10",
+              "alternative_name": "-ms-grid-columns"
             },
             "opera": [
               {
diff --git a/css/properties/grid-template-rows.json b/css/properties/grid-template-rows.json
index fb216f6a9aff28..525ba3b1980caf 100644
--- a/css/properties/grid-template-rows.json
+++ b/css/properties/grid-template-rows.json
@@ -33,9 +33,16 @@
                 ]
               }
             ],
-            "edge": {
-              "version_added": "16"
-            },
+            "edge": [
+              {
+                "version_added": "16"
+              },
+              {
+                "alternative_name": "-ms-grid-rows",
+                "version_added": "12",
+                "version_removed": "79"
+              }
+            ],
             "firefox": [
               {
                 "version_added": "52"
@@ -69,7 +76,8 @@
               }
             ],
             "ie": {
-              "version_added": false
+              "version_added": "10",
+              "alternative_name": "-ms-grid-rows"
             },
             "opera": [
               {