What .bak files after sitewide link change

[larry45]

I just some sitewide link changes with DW CC, and mirror upload, and I see for first time in my site ever hundred of .bak files what are these?

And the outdate FTP client I have I'm seeing that putting remote file  is newer (and I did not touch remote server) or something like that. so bit worried and confused, thanks.

[Preran]

Can you check out the response in this post BAK (Backup)and MNO (Design Notes) files​ and let us know if it helped?

Thanks,

Preran

[larry45]

Peran, thanks, good call as the guy asked same question, but the thread was worthless as no one helped him, so I'm still stuck.

My issue only .bak file not the other one he mentions.

[Preran]

I am checking with the DW team. Will get back as soon as I have a response.

Thanks,

Preran

[stign8589771]

I have the same problem. All these .bak -files cluttering my files folder. I don't think I need these backup files. How do I get rid of them. I spent hours trying some time ago. I find no information Googeling and on this forum there is till no answer one year after Larry asked the question. Come on !