The faster sharing application Xender allows users to move it to the SD card from the internal storage of the device. Some old devices do not have enough space they keep these files in the internal storage of the device. In this way, developers have added it in the latest version where you can move this file to an SD card.
To do this, you need to open the settings of your device and go to the file manager of your device. Go to the application and long click on the xender app. Click on the move button and move it to the SD card of your device. Keep your storage free to keep other applications on your device.