Convert CRDOWNLOAD to APK

The .crdownload file extension indicates that the file is a partial download from the Google Chrome browser. This means that the download is incomplete, and the file is not usable yet.
You must complete the download to convert this file to an .apk (Android application package) file.

Here are the steps you should follow:

Complete the file download

Open Chrome and go to the Downloads page (you can access this by typing chrome://downloads/ in the address bar). If the download has been paused, resume it. If the download is stuck or failed, restart it from the source address.

Check the file

Once the download is complete, the .crdownload extension will disappear, revealing the .apk extension if the file was originally an APK.

Rename the file manually (if needed)

If the download is complete but the file still has the .crdownload extension, you can rename it manually. Right-click on the file and select Rename, then change the extension from .crdownload to .apk.

Verify the APK file

• Use an Android device or an Android emulator to verify that the APK file works correctly.
• Transfer the file to your Android device and try to install it. A successful installation start indicates a functional file.

In summary, there isn't a direct tool to convert a .crdownload file to an .apk file because the .crdownload file is just an incomplete download. The primary step is to ensure the download completes correctly. If the file remains as .crdownload, renaming it after download completion should allow you to use it as an APK file. If you encounter any issues, you might need to re-download the file to ensure it is not corrupted.