|   | Types and strings conversions | 
| TIEXPORT2 const char *TICALL tifiles_model_to_string(CalcModel model) | 
| model : | a calculator model. | 
| Return value : | a string like "TI92+". | 
| TIEXPORT2 CalcModel TICALL tifiles_string_to_model(const char *str) | 
| str : | a calculator model as string like "TI92". | 
| Return value : | a calculator model. | 
| TIEXPORT2 const char *TICALL tifiles_attribute_to_string(FileAttr attrb) | 
| attrb : | an attribute of variable. | 
| Return value : | a string like "archived". | 
| TIEXPORT2 FileAttr TICALL tifiles_string_to_attribute(const char *str) | 
| str : | a variable attribute string like "protected". | 
| Return value : | a variable attribute. | 
| TIEXPORT2 const char *TICALL tifiles_class_to_string(FileClass klass) | 
| klass : | a class of file. | 
| Return value : | a string like "backup". | 
| TIEXPORT2 FileClass TICALL tifiles_string_to_class(const char *str) | 
| str : | a file class string like "backup". | 
| Return value : | a file class. |