diff --git a/CHANGELOG.md b/CHANGELOG.md
index 01652d84..fef64d7e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,10 @@ All notable changes to the "leetcode" extension will be documented in this file.
 
 Check [Keep a Changelog](http://keepachangelog.com/) for recommendations on how to structure this file.
 
+## [0.5.0]
+### Added
+- Support submit and test solution files from the file explorer in VS Code ([#24](https://github.com/jdneo/vscode-leetcode/issues/24), [#26](https://github.com/jdneo/vscode-leetcode/issues/26))
+
 ## [0.4.0]
 ### Added
 - Support locked problem [(#20)](https://github.com/jdneo/vscode-leetcode/issues/20)
diff --git a/README.md b/README.md
index ae7a751c..fcf8b4fc 100644
--- a/README.md
+++ b/README.md
@@ -36,12 +36,14 @@ Solve LeetCode problems in VS Code.
 ### Search Problems by Keywords
 ![SearchProblem](https://raw.githubusercontent.com/jdneo/vscode-leetcode/master/resources/gif/searchproblem.gif)
 
-### Test solutions by customized test case
+### Test solutions by customized test case <sup>1</sup>
 ![TestSolution](https://raw.githubusercontent.com/jdneo/vscode-leetcode/master/resources/gif/testsolution.gif)
 
-### Submit Solutions to LeetCode
+### Submit Solutions to LeetCode <sup>1</sup>
 ![SubmitSolution](https://raw.githubusercontent.com/jdneo/vscode-leetcode/master/resources/gif/solveproblem.gif)
 
+<sup>1</sup> If you trigger the `Submit to LeetCode` and `Test in LeetCode` commands in the Command Palette, the extension will upload the current active file in editor.
+
 ## Commands
 This extension provides several commands in the Command Palette (F1 or Ctrl + Shift + P):
 - **LeetCode: Sign in** -  Sign in to LeetCode
@@ -50,8 +52,8 @@ This extension provides several commands in the Command Palette (F1 or Ctrl + Sh
 - **LeetCode: Create new session** -  Create a new session
 - **LeetCode: Refresh** -  Refresh the LeetCode Explorer
 - **LeetCode: Search Problem** -  Search for problems by keywords
-- **LeetCode: Test in LeetCode** - Test the current solution file by customized test case
-- **LeetCode: Submit to LeetCode** -  Submit the solution to LeetCode
+- **LeetCode: Test in LeetCode** - Test solution file by customized test case
+- **LeetCode: Submit to LeetCode** -  Submit the solution file to LeetCode
 
 ## Known Issues:
 - This extension will infer the current target problem according to the active editing file. Please do not change the file name.
@@ -91,12 +93,14 @@ This extension is based on [@skygragon](https://github.com/skygragon)'s [leetcod
 ### 根据关键字搜索题目
 ![SearchProblem](https://raw.githubusercontent.com/jdneo/vscode-leetcode/master/resources/gif/searchproblem.gif)
 
-### 用自定义测试用例测试答案
+### 用自定义测试用例测试答案 <sup>1</sup>
 ![TestSolution](https://raw.githubusercontent.com/jdneo/vscode-leetcode/master/resources/gif/testsolution.gif)
 
-### 向 LeetCode 提交答案
+### 向 LeetCode 提交答案 <sup>1</sup>
 ![SubmitSolution](https://raw.githubusercontent.com/jdneo/vscode-leetcode/master/resources/gif/solveproblem.gif)
 
+<sup>1</sup> 如果您通过命令面板触发 `Submit to LeetCode` 和 `Test in LeetCode` 命令，本插件将会提交当前文件至 LeetCode。
+
 ## 命令
 该插件在命令面板（F1 或 Ctrl + Shift + P）中支持下列命令：
 - **LeetCode: Sign in** -  登入 LeetCode
@@ -105,7 +109,7 @@ This extension is based on [@skygragon](https://github.com/skygragon)'s [leetcod
 - **LeetCode: Create new session** -  创建一个新的答题进度存档
 - **LeetCode: Refresh** -  刷新左侧题目列表视图
 - **LeetCode: Search Problem** -  根据关键字搜索题目
-- **LeetCode: Test in LeetCode** - 用自定义测试用例测试当前解答文件
+- **LeetCode: Test in LeetCode** - 用自定义测试用例进行测试
 - **LeetCode: Submit to LeetCode** -  提交答案到 LeetCode
 
 ## 已知问题
diff --git a/package.json b/package.json
index e84812dd..78589494 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "name": "vscode-leetcode",
     "displayName": "LeetCode",
     "description": "Solve LeetCode problems in VS Code",
-    "version": "0.4.0",
+    "version": "0.5.0",
     "author": "Sheng Chen",
     "publisher": "shengchen",
     "icon": "resources/LeetCode.png",
diff --git a/resources/gif/solveproblem.gif b/resources/gif/solveproblem.gif
index c453329f..e40b0f32 100644
Binary files a/resources/gif/solveproblem.gif and b/resources/gif/solveproblem.gif differ
diff --git a/resources/gif/testsolution.gif b/resources/gif/testsolution.gif
index 76ccbc77..4b1c88f2 100644
Binary files a/resources/gif/testsolution.gif and b/resources/gif/testsolution.gif differ