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CUST file extension

The table below provides useful information about the .cust file extension. It answers questions such as:

  • What is the .cust file?
  • What program do I need to open a .cust file?
  • How can the .cust file be opened, edited or printed?
  • How can I convert .cust files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ QuarkXPress for Mac Custom Data

QuarkXPress for Mac Custom Data .cust file icon
CUST file is a QuarkXPress for Mac Custom Data. QuarkXPress is a computer application for creating and editing complex page layouts in a WYSIWYG environment.
CUST format description not yet available
Category: Document files
Application: QuarkXpress
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
CUST aliases:
CUST related links:
CUST related extensions:
QuarkXPress Document

Publish-It Document

QuarkXPress Project

QuarkXPress Library

QuarkXPress Web Document

QuarkXPress Project Template

QuarkXPress Document Template

QuarkXPress Dictionary Data

QuarkXPress Book

QuarkXPress Tags File

Other types of files may also use the .cust file extension.

🚫 The .cust file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

cst, cus, cut, cuts, ust

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

GMFC Foam Cutting Data
Autodesk AutoCAD Custom Dictionary
Adobe Director Cast
CHARTrunner Control Chart Style
BPM Studio Cue Points Data
WindLDR Custom Monitor Data
SAM Constraints Data
CLAN Disambiguation Rules Data
Medlin Payroll Software Customers Data
SWAT Weather Forecast Input Data

🔴 Can't open a .cust file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .cust file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .cust file extension, write to us!

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