Save function not working...but I don't want to close down project to fix it

[Marissa337075689w46]

Hi InDesign experts,

I have been working in a large file (typsetting a book) for a couple of days without closing InDesign and then sometime while I was working today I went to undo and... it won't let me. I went to save and... it won't let me. 

When others have had this problem I've read their suggestions to close InDesign and reset the preferences or update the app. The problem is, I don't know when it last saved and I fear I'm going to lose a lot of work if I close it down now. 

Any solutions to bringing back the save functionality--even just temporarily so I can save and close it down-- without closing my file and losing all my work?

Thanks in advance!

[Steve Werner]

Did you try "File > Save As..." and save as another name?

Do you have a backup of the file?

[leo.r]

Can you Export it as IDML?

[Marissa337075689w46]

Hi! Yes it looks like I can. I have never done that before--will it allow me to open it and edit it like a normal indesign file?

[leo.r]

Yes, you just open IDML in InDesign then save as InDesign file.

[Steve Werner]

I hope that works for you. 

It looks like you need to keep backup files.  It also looks like you need to save your files more regularly while working.