QMSB file extension
The table below provides useful information about the .qmsb file extension. It answers questions such as:
- What is the .qmsb file?
- What program do I need to open a .qmsb file?
- How can the .qmsb file be opened, edited or printed?
- How can I convert .qmsb files to another format?
Table of Contents
- ✅ Questionmark Secure Data
- 🔄 .qmsb file converters
- 🚫 .qmsb file related errors
We hope you find this page helpful and a valuable resource!
1 extension(s) and 0 alias(es) found in database
✅ Questionmark Secure Data

QMSB file is a Questionmark Secure Data. Questionmark Secure is a locked-down browser designed to help you provide secure environment in which to deliver high stakes assessments such as tests and exams.
Other types of files may also use the .qmsb file extension.
🚫 The .qmsb file extension is often given incorrectly!
According to the searches on our site, these misspellings were the most common in the past year:
Is it possible that the filename extension is misspelled?
We found the following similar file extensions in our database:
🔴 Can't open a .qmsb 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:
example.qmsb
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 .qmsb 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 .qmsb file extension, write to us!