For such a paltry set of pre-made clips, I would expect that it would be easy to find third party files as a replacement, but even as someone who has worked with various CAD programs, I have no idea what a ".zf3d" file is. This isn't a file you'll find amongst a database of free stock. I imagine the game here is that they want you to purchase another program that integrates with Explaindio in order to make full use of the 3D function.
Original video animation (Japanese: オリジナル・ビデオ・アニメーション Hepburn: Orijinaru bideo animēshon), abbreviated as OVA (オーブイエー / オーヴィーエー / オヴァ ōbuiē, ōvīē or ova) and sometimes as OAV (original animated video), are Japanese animated films and series made specially for release in home video formats without prior showings on television or in theatres, though the first part of an OVA series may be broadcast for promotional purposes. OVA titles were originally made available on VHS, later becoming more popular on LaserDisc and eventually DVD. Starting in 2008, the term OAD (original animation DVD) began to refer to DVD releases published bundled with their source-material manga.
Unfortunately, most of the web pages and the ads for animation software is deceptive, misleading, or outright false. All of them advertise “free” in one form or another but as a commenter above noted, any usable forms aren’t actually free at all, they require a monthly subscription. I’d prefer to buy the software as opposed to a monthly fee but any of the packages that advertise “free” and then want to charge for a usable product are automatically stricken from my list of possibilities and I also let clients know the same.
When you first open Explaindio, the interface is overwhelming. The menu bar along the top contains around 20 different buttons. The timeline is positioned just underneath this, where you can add scenes or modify media. Lastly, the canvas and editing panel is at the bottom of the screen. Note that this area will change depending on what you are working on.
Explaindio 4.0 Create, customize, and export. That’s how simple it is to create your very next video. Regardless if it’s a 2D, 3D, Explainer, Doodle, or Motion video, you can create them in 3 easy steps in just minutes. Plus there’s a full step by step demo how you can easily create this with a powerful desktop software. And it requires NO experience:
With Explaindio Video Creator 4.0 you’ll also get access to a market. Here you get the opportunity to buy (or sell) videos. So that you can make money by selling your own video creations made with the Explaindio software or simply save time by buying attention-grabbing, higher quality videos, motions, animations or backgrounds instead of creating yourself.