.OLD File Extension

Backup File

Developer N/A
Popularity
3.7  |  104 Votes
Category Backup Files
Format N/A

What is an OLD file?

An OLD file is a backup copy of a file, such as a .JPG or .DOC file. It may be created automatically by a software program or created manually by a user to indicate that the file is a backup copy of a file.

More Information

The ".old" extension is often placed after the original file suffix of a file when a newer version of the file has been created or saved by a certain program. For example, document.doc.old would be a backup copy of the document.doc file. The ".old" extension may have to be deleted in order for the file to be opened correctly.

Open over 400 file formats with File Viewer Plus.Free Download

Programs that open or reference OLD files

Windows
Original program
Mac
Original program
Updated April 12, 2018

Verified by FileInfo.com

The FileInfo.com team has independently researched the Backup file format and Mac and Windows apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

If you would like to suggest any additions or updates to this page, please let us know.