All about BYO Files

The BYO file type is primarily associated with CartoExploreur.

BYO	File extension: BYO
	File type:	Cartographic Map

What is a BYO file?

BYO files mostly belong to CartoExploreur by Bayo. Use our "Online BYO Text Viewer" below to analyze your BYO file and to see all text it contains.

How to open a BYO file

You need a suitable software like CartoExploreur to open a BYO file. You need a suitable software like CartoExploreur from Bayo to open a BYO 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 BYO file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a BYO file directly in the browser:. Just drag the file onto this browser window and drop it.

Online BYO Text Viewer

Choose your .byo file to analyze

or drag and drop it here

Online File Viewer

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What to Do When a .BYO File Fails to Open

BYO files can originate from different programs and aren't universally openable.

Identify the Source: These files often come from hikers or GIS professionals sharing cartographic maps, suggesting they belong to Bayo's CartoExploreur software.
Check the Header: Open the file in a hex viewer or text editor to inspect the first few bytes.
- "PK" indicates a zipped archive.
- Readable text like XML suggests structured data.
- Specific magic bytes may point to proprietary map data.
Use the Original Software: The original program is usually required; try CartoExploreur or other Bayo mapping tools, and ask the sender if uncertain.
Use this Webpage: Drag and drop your .BYO file into our viewer to detect its format, extract readable metadata, and preview the contents when possible.

Technical Data for BYO File Extension

a byo Cartographic Map is a special file format by Bayo and should only be edited and saved with the appropriate software.

How to solve problems with BYO files

Associate the BYO file extension with the correct application.
Update your software that should actually open cartographic maps. Because only the current version supports the latest BYO file format. Search, therefore, e.g. on the Bayo manufacturer website after an available CartoExploreur update.
To make sure that your BYO file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .BYO file online - secure, fast, and no downloads needed.