Changed messages, on the way to improved dataset output.
rearrangements, towards making datasets correctly
Rearranging, to make Excel and Text output functions
created separate makeExcel function
test if file exists, within makeExcel function
stub for makeTextFile function
improved diagnostics
building makeTextFile function
debugging
debugging
better output diagnostics
cleanup
better output diagnostics
try wx.Yield() to make app more responsive while previewing; helps some
preview work put in 'showPreview' function, 1st steps towards making separate thread
insert 'wx.CallAfter', prep for separate thread
working towards threading for dataset preview
try separate thread; bug, needs separate DB connection
generateSheetRows allows other cursor
separate DB connection implemented, still some bugs