Audacity won't open Project file

I’ve working on a somewhat important, private project on Audacity which took me hours, although I didn’t complete it. I saved it as an Audacity Project for later editing since it’d take me some time to finish - however, I’ve tried opening the .aup file, and it’s refusing to open it. It’s displaying this error message:

Error Importing

Audacity did not recognize the type of the file ‘C:ExampleExampleMy DocumentsProjectfilename.aup’. If it is uncompressed, try importing it using “Import Raw”.

I’ve troubleshooted on this forum, and all the answers beforehand seem to suggest that it’s either a file rename or relocation; however, I’ve triple-checked and it’s not an error on my part. But the _data folder and the .aup file are located together, so that’s not a problem. I haven’t renamed the file or the folder, either, and I’m definitely opening it using “Open” as opposed to “Import”.

I’m not particularly tech-savvy, so I don’t really know how to do all that coding stuff to fix things. I’ve checked and checked again, and I haven’t moved or changed anything - it’s just refusing to open.

I’m using Audacity 2.0.5 installed via the .exe installer. I’m on Windows XP (although it’s now obsolete, that shouldn’t pose a problem).

Any help ideas? It’s taken me a long time to work on this and I couldn’t just redo it. :confused:

Well, it is a text file. Can you open it in TextEdit or whatever your native text editor is?

Yours will be a lot more complicated and crushed than this, but they’re all semi-English words.

Somewhere in the first line or two is going to be the Show/Project name.


Did you force Windows to show you what the “real” filename is? You could have a real file of MyGreatMusic.aup.doc and unmodified Windows will show you MyGreatMusic.aup. Audacity will not open that.

Hidden File Extensions - Windows
– Start > My Computer > Tools > Folder Options > View > [ ] Hide Extensions for Known File Types (deselect)
– Apply (to this folder) or Apply to All Folders
– OK


You can’t import AUP files.

Open the AUP file using File > Open… or File > Recent Files if the project is still listed there.


I’m definitely opening it using “Open” as opposed to “Import”.


Sorry I must have missed that, but if so there aren’t many possible explanations. If you add a dot (period) into to the file name, Audacity will add the correct AUP extension at the end.

Most but not all syntax errors in the AUP file will give an “error at line” error.

I suggest you attach the AUP file so we can see it. Please see here for how to attach files: .



Im having the exact same problem, on Audacity 2.0.5, Win7 Professional… I was working on a live recording for a shortfilm, and instead of exporting it at the moment as audio files, i saved normally the project. Now I tried to open it up again for post-production but it doesnt open. I checked what this post previously recommended but it didnt help. Checked the format .aup (unchecked the box that hides the sufix on Folder Options), The _data folder is alright and in the same directory besides the .aup file…

Please help, as I seriously need that audio at least for exporting it bounced

Ill upload a screen captured image if requested.

Is it really exactly the same problem - that you see the error

Error Importing

Audacity did not recognize the type of the file

If not, then it would be better if we moved this to a fresh topic.

We can’t see your computer. Please give the exact error that Audacity shows when you open the AUP file.

By all means if it is easier to show the Audacity error message that way.

I suggest you attach the AUP file. Please see here for how to attach files: .


Hello Gale,

As I have said, i Identified the problem as the same one of this topic and its the exact same error

Ill add the sreenshot and the AUP file as requested

Thanks very much

AUP file link:

Thank you. It is always best to give the complete error, to avoid any possible confusion.

Unfortunately the AUP file is corrupt. It is just thousands of zero values and there is no way to make it usable. Did you save the project to some temporary location where another application might interfere with the file?

The only thing you can do is open the _data folder, sort the files by time, rename the files while sorted by time so that the names follow sequentially, then recover WAV files from the data using an old recovery utility that was written for older Audacity. Please see: .