Home : File Types : OLD File

.OLD File Extension

File TypeBackup File

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CategoryBackup Files


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

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Typically used as an indicator for a backup copy of a file; appended to the filename when a newer version of the file has been created or saved by a certain program; often placed after the original file suffix (i.e. document.doc.old would be a backup copy of the file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

.OLD Extension Information

This page contains information about the file extension OLD and its known file associations. Our goal is to help you understand what a *.old file is and how to open it.

The Backup file type, file format description, and programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and do not publish any information we have not verified.

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