Opening G18 Files

The G18 file type is primarily associated with Recomposer.

G18	File extension: G18
	File type:	MIDI Sequencer Music File

What is a G18 file

G18 files mostly belong to Recomposer. Use our "Online G18 File Viewer" below to open and view your G18 file directly in your browser.

How to open a G18 file

You need a suitable software like Recomposer to open a G18 file. You need a suitable software like Recomposer to open a G18 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 G18 file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a G18 file directly in the browser:. Just drag the file onto this browser window and drop it.

Online G18 File Viewer

Choose your .g18 file to view

or drag and drop it here

Online File Viewer

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How to extract texts from G18 files or capture a screenshot to PDF, JPG, DOCX, TXT, ...

You can extract texts from G18 file or capture a preview screenshot using our online G18 file viewer:

To do so, click the "Choose your .g18 file to view" button above.
Your G18 file will then be displayed in the browser.
Now click on "Save as..." at the top of the page.
Then choose the file format (e.g. JPG, PDF, DOCX, TXT, ...) you want.
Your file will be converted and downloaded.

Trouble Opening a .G18 File? These Steps Will Help

Since .G18 files come from different programs, they aren't universally openable.

Identify the Source: A file from a musician suggests a MIDI Sequencer Music File, while one from a machinist may be CNC data.
Check the Header: Inspect the first bytes in a text editor or hex viewer:
- Readable text or coordinates imply a CNC machining file.
- Binary data or specific magic bytes often indicate a Recomposer sequence.
Use the Original Software: The original program is usually required; try Roland Recomposer or a compatible MIDI sequencer, or ask the sender if you are uncertain.
Use this Webpage: Drag and drop your file into our viewer to detect the format, extract readable text or metadata, and preview contents when possible.

Technical Data for G18 File Extension

Related files:

rcp, r36, g36

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: CAMtasticLayer18GerberData
EXEFile: %ProgramFiles%\Altium\Dxp.exe %1

ProgramID: CAMtasticLayer18GerberData
EXEFile: %ProgramFiles%\Dxp.exe

a g18 MIDI Sequencer Music File is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with G18 files

Associate the G18 file extension with the correct application.
Update your software that should actually open midi sequencer music files. Because only the current version supports the latest G18 file format. Search, therefore, e.g. on the manufacturer website after an available Recomposer update.
To make sure that your G18 file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .G18 file online - secure, fast, and no downloads needed.