Saving Sharp PC-G850VS text file to tape?

[toml_12953]

I have a Sharp PC-G850VS and I'd like to save C text files to tape. Right now, the only way I can think of doing it is to convert the text file to a BASIC program and BSAVE it. When I want it back, I BLOAD it then convert the BASIC program back to a text file. The problem with this is that BASIC converts everything to upper case and the C interpreter needs lowercase keywords and function names. Is there a better way? I looked all through the English translation of the German translation of the Japanese manual but didn't find anything.