I01 file extension

Winphone phonebook

Run a free instant scan for .I01 file errors

A .I01 file is known as a Winphone phonebook.

This file extension was added to our database by a visitor to this site, but no further information was provided. We have yet to investigate the I01 file extension any further, or there was simply not enough information available at the time to report accurately on this format.

However, it is possible that other file formats exist that use the I01 extension, so please let us know if you do not think this extension matches the file format you are looking for.