I think I’ve done something stupid. I had an AUP project file with a _data folder, and I think what I did was to delete the tracks from it, then import the source files (.ogg format), then save the AUP file.
The file is an AUP, but when I try to open it I get the message
“Could not open file <file_path>: Incorrect filetype.”
followed by a message
“Audacity did not recognize the type of the file <file_path>. For uncompressed files, also try File > Import > Raw Data”.
If I rename it to an AUP3 file, I get the message
“Cannot import AUP3 format. Use File > Open instead”
If I try to open it with File > Open, I get the same message.
The file size is 335,322 KB according to Windows, and is not null, when I open it in a Hex Editor, I get this:
00000000 50 4B 03 04:14 00 08 00|08 00 C1 86:6C 59 00 00 00000010 00 00 00 00:00 00 BB 03|00 00 10 00:1C 00 4C 5A 00000020 53 32 61 74:72 4B 47 74|4B 66 2E 61:75 70 55 54 00000030 09 00 03 79:CE 33 67 79|CE 33 67 75:78 0B 00 01 00000040 04 E9 03 00:00 04 E9 03|00 00 C5 53:4D 4F C2 30 00000050 18 3E CB AF:A8 EF 7D ED|3E 20 7E 64:83 44 20 C6
I have tried to use audacity-project-tools too. When I run
audacity-project-tools -drop_autosave broken.aup3
and
audacity-project-tools -recover_db -recover_project broken.aup3
I get the message
file is not a database
This is the same whether it’s named AUP or AUP3
Is there anything else I can do to try and recover the file?