Home : File Types : OLD File

.OLD File Extension

File TypeBackup File

3.7 (45 Votes)
CategoryBackup Files


File format categories include Binary, Text, XML, and Zip. The format of this file type has not been determined.

What is an OLD file?

Typically used as an indicator for a backup copy of a file; appended to the filename when a newer version of the file has been created or saved by a certain program; often placed after the original file suffix (i.e. document.doc.old would be a backup copy of the file "document.doc").

More Information

May be created automatically by a software program, but may also be created manually by the user. The ".old" extension may have to be deleted in order for the file to open correctly.

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Programs that open OLD files
Original program
Original program
Updated 6/8/2009

About OLD Files

Our goal is to help you understand what a file with a *.old suffix is and how to open it.

The Backup file type, file format description, and Mac and Windows programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and only publish information about file formats that we have tested and validated.

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