Export the file as WAV preferably and import back into your DAW. Hopefully, you can keep the tracks separate before exporting (I have Audacity and well and haven't seen it)
Edot: I just found it. Here's how to Import it into your DAW:
1) Record each individual track (Make sure you
mute the previous tracks, so they won't be picked up/recorded
2) Label each track (There's a dropdown up above the sample rate (44.1k by default) Once label, the titles should appears in the waveforms' headers.
3) File>
Export Multiple ... Here, a dialog box will pop up.
Choose the desired file type to be exported.
Choose the folder (Programs (x86/Audacity is the default).
There's a option to "Split files based on" - (if not grayed out (it is for me) you can, but don't have to check the box, but if you do, you'll have the choice to split them based on labels (whatever you named the tracks). I see no need for this (yet)
On the right side, it's asking about naming the files either by:
Label/Track Name (Recommend)
Numbering Before Track Name (if you have alot of tracks - ie: Exporting to make a CD)
Numbering after filename prefix (don't bother with this one)
The Tracks radio button should be lit automatically.
4) Click
Export 5) Another dialog box will pop up, so you can essentially put in any other information (Title/Author/Artist/Year, etc.) Skip all of this (unless you don't want to) and click OK.
Repeat step 5.
6) Go into your DAW and import the files. (File>Import ...)