CSV (comma-separated values) is a very frequently-used open data exchange format used in program development and office environment. Such files can be opened and edited by any text processor, the most commonly used of which is Microsoft Excel. But their common disadvantage is that editing CSV files is very inconvenient and inefficient.

Vita3K is the world's first functional/experimental and the most powerful game emulator for SONY's second generation of handheld game console PlayStation Vita (PSV) and PlayStation TV (PSTV). As a free, open-source and cross-platform PSVita/PSTV console emulator, Vita3K aims to enable players to play commercial and homebrew video games made for PSV/PSTV console on Windows, Mac and Linux platforms.

When you first launched Minetest, didn't you think it was just Minecraft? Actually not. Although their interface, style, and gameplay are almost the same, Minetest is essentially a free, open-source and cross-platform voxel game engine (written in C++ and Lua, using the Irrlicht Engine). It was created by Perttu Ahola and first released in 2010, and is now developed by a team of volunteers, with significant contributions from the community. It's available for Linux-based systems, FreeBSD, Windows, Mac, and Android platforms, and provides an API for users to create their own games and mods written in Lua.

By default, the Sony PlayStation 4 gamepad cannot connect directly to your computer to use. Just as the PS2/PS3 gamepad can be connected to PC via ScpToolkit (ScpServer), the PS4 gamepad can be connected to your PC perfectly via DS4Windows. DS4Windows is an indispensable tool for players who want to use their PS4's DualShock 4 wireless controller on their PC.

One of the common situations when you get music from the Internet is that there is no album cover in some music files. For music aficionados, this is unbearable. Although some music player programs have built-in features such as tag and album cover fixes, they are still not professional or powerful enough to be considered indispensable.