[Zubersoft]

Yes, a .mss file is just an XML file. Open it with a text editor and you'll see that it's fairly basic in nature. You will have to fill in a few fields that may not be completely obvious though. The FileType field indicates what type of file it is, which is the following:

Image = 0
PDF = 1
Text = 2
Chord Pro = 3
ABC = 11

MobileSheets needs this information to correctly match on song titles when there are multiple songs with identical titles but different files. If you need an example of a file, here is one:

<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<Setlists>
    <Setlist>
        <Name>Test Setlist</Name>
        <Song>
            <Title>Test Song 1</Title>
            <FileName>testfile.pdf</FileName>
            <FileType>1</FileType>
        </Song>
        <Song>
            <Title>Test Song 2</Title>
            <FileName>testfile2.pdf</FileName>
            <FileType>1</FileType>
        </Song>
    </Setlist>
</Setlists>

Let me know if you have additional questions. At some point in the future I may switch to using JSON instead, as the format is a little less verbose.

Mike