Method One
First step
We first open the QQ browser and then click on the "Menu" button, enter, as shown in the following image
Second Step
Then in the open interface you will see that there is a "download", click on it can be entered to view the downloaded file, and then you can delete it.
Method Two
First step
Also open the mobile phone QQ browser and then click the "Menu" button, as shown in the following figure
Second Step
Then we find "file" and open the following image
Third Step
We click on "Install Package", we can find the installation file
Method Three
First step
On the phone's desktop we find the "File Management/Folder" icon to enter also can see the downloaded file can also be deleted here
Second Step
We in the mobile phone QQ browser Click "Qqbrowser" into open access
Then there will be a lot of QQ browser to download the files we can delete a