All about GRW Files

The GRW file type is primarily associated with SeeYou.

GRW	File extension: GRW
	File type:	Waypoint

What is a GRW file?

GRW files mostly belong to SeeYou by Naviter. SeeYou is a planning and analysis tool for glider pilots. It is designed for the desktop and notebook PCs.

How can I open a GRW file?

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

Online GRW Text Viewer

Choose your .grw file to analyze

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Online File Viewer

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4 Steps to Open an Unknown .GRW File

GRW files can come from different programs and aren't universally openable.

Identify the Source: These files often come from glider pilots or flight planning workflows, suggesting Naviter SeeYou Waypoint files. They may also be legacy graphics.
Check the Header: Open the file in a text editor or hex viewer to inspect the first bytes:
- Readable text with coordinates indicates flight data.
- "PK" suggests a compressed archive.
- Unreadable magic bytes imply a proprietary binary format.
Use the Original Software: The original program is usually required; try Naviter SeeYou or GraphicWorks. If uncertain, ask the sender.
Use this Webpage: Drag and drop your file into our viewer to detect the format, extract readable text or metadata, and preview it when possible.

Technical Data for GRW File Extension

Related files:

exe, da4, wpz, mul

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: KPC.ReportGroupFile
EXEFile: %ProgramFiles%\Kettley Publishing\KETTLEY.EXE

a grw Waypoint is a special file format by Naviter and should only be edited and saved with the appropriate software.

How to solve problems with GRW files

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