I found some of my old diskettes from the late 1980s and 1990 and found some files on my DOS 3.3 disk that are Text files ('T' file type when you CATALOG) that have the "extension" .VSP and .ETH. For the life of me, I cannot recall what program or application was used to create these type of file names. I think the .VSP file is type of BASIC or other program file. I used to use ProBasic programming language, but I thought this was ProDOS-based - not DOS 3.3. The .ETH file type seems to be from some wordprcoessor. Does anyone know the application or program that may have generated these files? Thanks.