1. Import Your Video Clips
Initialize Filmii on your PC (a Windows 10 computer here), click Start from Scratch, click Import File, and locate and import the source video from your local hard drive to the application. Once the clip is added to the Media window, hover mouse over to it, and click the + button that appears at the bottom-right corner of the thumbnail to add the media to the Timeline.
2. Split and Trim the Unwanted Footage
Select the video clip in the Timeline, position the Skimmer (Playhead) to the frame you want to start the video from, and click Split from the toolbar above the Timeline (or press the Ctrl + B keys together on the keyboard). After this, select the unwanted segment, and click Delete from the toolbar (or press Del on the keyboard) to remove the section. Repeat this process to eliminate the other unnecessary portions of the video as well.
3. Export Your Trimmed Video
Click the Play button in the Preview window to see if the edited footage meets your expectations. Once everything looks fine, click Export from the top of the interface, and follow the on-screen instructions to export the trimmed video to your preferred format and for your favorite social media platform.