.OLD 文件扩展名
Backup File
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什么是 OLD 文件？
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.
更多信息
The ".old" extension is often placed after the original file suffix of a file when a newer version of the file has been created or saved by a certain program.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.
可打开 OLD 文件的程序
Windows
Original program
Mac
Original program