Opening a CHECKSUM File

The CHECKSUM file type is primarily associated with Text Editor.

CHECKSUM	File extension: CHECKSUM
	File type:	text file

What is a CHECKSUM file

CHECKSUM files mostly belong to Text Editor. A CHECKSUM file is a plain text file used to store calculated hash values that help verify if a file has been changed or corrupted.
This file holds the results of a file integrity check. It is generally created by a checksum tool that uses one or more hash algorithms (for example, MD5, SHA-1, or SHA-256) to generate a unique digital fingerprint for a specific file. When you need to check if your file is still the original, you compare its newly computed hash with the value stored in the CHECKSUM file.

File Integrity Check: Its main role is to ensure the file remains unchanged.

Industry Usage: Companies like Files by Google, WhatsApp, and RARLAB RAR use these files for integrity verification.

Accessibility: As a text file, you can open it with any simple text editor such as Notepad or TextEdit.

How can I open a CHECKSUM file?

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

Online CHECKSUM Text Viewer

Choose your .checksum file to analyze

or drag and drop it here

Online File Viewer

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Programs that open and convert CHECKSUM files:

Text Editor
See the previous paragraphs to learn more about the main application. CHECKSUM files are often referred to as Text Editor simple text files because this type of file is primarily created or used by this software.
various software applications and systems
A *.CHECKSUM file is used for verifying the integrity of a file, ensuring it hasn't been tampered with or corrupted during storage or transmission. It contains a checksum value, generated by a cryptographic hash function, which acts as a unique fingerprint for the original file. By comparing the checksum of the downloaded or received file with the original checksum, one can confirm that the file remains unaltered. Different algorithms, such as MD5, SHA-1, SHA-256, etc., can be employed to generate these checksums, offering varying levels of security and collision resistance. *.CHECKSUM files are commonly used alongside software installers, compressed archives, and other critical files to guarantee their authenticity and integrity. This file format is classified as Data File.

Technical Data for CHECKSUM File Extension

File classification:

Simple text file

a checksum text file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with CHECKSUM files

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