I just tried it, the name is kept
If filename already exists and I do not tap on old file, index is attached behind extension (-> xyz.GPX (1) ) as expected.
Tapping on old file leads to overwriting
Tapping on .Kurviger file in Total Commander did not open it in Kurviger (I do not know why - worked with previous Kurviger versions). I fixed that by adding an internal association also for .kurviger files as described in
I had opened other local map files yesterday - then Kurviger used my map folder to store my GPX export - would it be possible to keep 2 paths in mind - one for local maps and one for import/export? I like separating them: Maps on SD card due to memory consumption, import/export in Kurviger folder to be able to open from Total Commander.