There are many software that can modify file names in batches, but there are not many software that specialize in modifying extension names. For example, when you want to modify many .jpeg pictures to .jpg suffixes, the batch modification function of the XP system can be used. It can't be done. You have to set modification rules to modify extensions using batch name modification software, which is quite troublesome. Use this extconvert to meet your needs for batch modification of extensions.
Extension conversion rule settings:
Add the pre-conversion and post-conversion extension lists on the main interface, and click the up and down arrows on the right side of the list to adjust the order.
Note that the extensions before conversion and after conversion are in one-to-one correspondence in order.
Select [Subdirectory owned by the first], the program will traverse all files and lower-level subdirectories in the selected directory.
it works
it works
it works