old是什么意思，old文件怎么打开？

old文件扩展名，old文件怎么打开？

.old

文件类型：Backup File

扩展名为.old的文件是一个备份文件。

文件说明：

Typically used as an indicator for a backup copy of a file; appended to the filename when a newer version of the file has been created or saved by a certain program; often placed after the original file suffix (i.e. document.doc.old would be a backup copy of the file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

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..old

打开.old文件

Mac OS

Original program　

Windows

Original program　

Linux

其它内容

来源：.old文件

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