If you are not too sure where your accounting data is, you can locate it through Acomba.
To do so open the Acomba application. The company you wish to upload for should be already opened. If not go File > Open Company
This will open a new window in which you can select the company file to open. Here you will be able to view the location of the file.
If the company file is already open go Info > About Acomba > Info > FRNet (last tab)
In here you will be able to view the location of the data files.
Viewing the SDK tab, will allow you to view the location for the directory.