Opening GSV Files

The GSV file type is primarily associated with VisualBoyAdvance.

GSV	File extension: GSV
	File type:	game save file

What is a GSV file?

GSV files mostly belong to VisualBoyAdvance. GSV files are specialized game data files that store progress and other game-related information.
They are used mainly by game emulators and related tools. For example, Game Boy Advance games use these files to keep track of game states, and tools like VisualBoyAdvance or DeSmuME can load them.

Emulation Saves: Many GSV files record progress in emulated games such as those on the Game Boy Advance. Tools like GBA Backup Tool assist in managing these saves. (Conversion Tool)

RPG and Other Game Saves: Some GSV files use the JSON format to save data for games similar to RPG Maker titles, as seen with the Grime save file. (Grime on Steam)

Compressed Data: A few of these files are compressed using zlib or GZIP, which helps reduce file size. This method is employed in cases like the Grim Fandango save file. (Grim Fandango Remastered)

Tournament Data: Certain GSV files hold tournament data, such as records from Go tournaments managed by GnuGo. (GnuGo)

FilExt.com note: The files hold key game state data that lets a game resume exactly where it ended. It is important to use the right application to open and modify these files, and to always back up your saves before making changes.

How do you open GSV files?

You need a suitable software like VisualBoyAdvance to open a GSV file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your GSV file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a GSV file directly in the browser:. Just drag the file onto this browser window and drop it.

Online GSV Text Viewer

Choose your .gsv file to analyze

or drag and drop it here

Online File Viewer

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GSV file format details:

If you can determine the file format, the associated program can also be determined. Often, the file format can be deduced from the file extension or the initial bytes (called the signature). If the file extension does not match the file format, double-clicking on the file will cause an error upon opening. So a detailed analysis of a file is vital in order to determine the format and the associated program. Our examination of the GSV files comes to the following conclusion:

GSV is rarely used as a file extension and includes many different file formats. But the following two file formats are common:

• 15% of all GSV files start with the bytes ADVSAVEG, which are crucial for this file format. The content consists of illegible binary data, which can only be read and interpreted by the associated programs. The files are often between 9 KB and 33 KB in size. The files contain the following words: ADVSAVEG. A usual file name is mega-man-zero-4.11272.gsv or dragon-ball-z-the-legacy-of-goku-ii.22863.gsv. Files like these have the following tags: mega, battle, zero, network, dragon, ball, legacy and goku.
• 10% of all GSV files are using the well-known JSON file format to store the data. JSON (JavaScript Object Notation) is a lightweight data−interchange format. It is easy for humans to read and write. It is easy for machines to parse and generate. These files are plain text, which means they can be viewed with any text editor such as Windows Editor, Nano for Linux, and TextEdit for macOS. GSV files can be up to 72 KB in size, but are often around 170 bytes - 54 KB. The files contain the following words: {"ailments":{"current":{},"store":{}},"entities":{"store":{"1":{"context":{"handler":"type","id":"274da41c-63c6-47cb-882e-a9257c10d17d","type":"door","version":"0"},"first_load":true,"id":"1","last_tu and {"entities":{"store":{"1":{"context":{"handler":"type","id":"1f7eef14-3855-4210-81e9-3fcaab444aa7","loot_table":"container_lv1","type":"barrel","version":"0"},"first_load":true,"id":"1","last_turn_tic. The following filename is common: save_data_0.gsv or save_data_2.gsv. Files like these have the following tags: save and data.

The remaining 75% of all GSV files are different files with different signatures, often e.g. zlib, GZIP and GBL. Often described as adventure, advanced or pokemo. If you want to find out what your GSV file contains, drag and drop it onto this page.