|   | Types and strings conversions | 
| TIEXPORT2 const char *TICALL tifiles_vartype2string(CalcModel model, uint8_t data) | 
| model : | a calculator model. | 
| data : | a type ID. | 
| Return value : | a string like "REAL". | 
| TIEXPORT2 uint8_t TICALL tifiles_string2vartype(CalcModel model, const char *s) | 
| model : | a calculator model. | 
| s : | a type as string (like "REAL"). | 
| Return value : | a type ID. | 
| TIEXPORT2 const char *TICALL tifiles_vartype2fext(CalcModel model, uint8_t data) | 
| model : | a calculator model. | 
| data : | a type ID. | 
| Return value : | a string like "REAL". | 
| TIEXPORT2 uint8_t TICALL tifiles_fext2vartype(CalcModel model, const char *s) | 
| model : | a calculator model. | 
| s : | a file extension as string (like 89p). | 
| Return value : | a string like "PRGM". | 
| TIEXPORT2 const char *TICALL tifiles_vartype2type(CalcModel model, uint8_t vartype) | 
| model : | a calculator model. | 
| id : | a vartype ID. | 
| Return value : | a string like "Assembly Program". | 
| TIEXPORT2 const char *TICALL tifiles_vartype2icon(CalcModel model, uint8_t vartype) | 
| model : | a calculator model. | 
| id : | a vartype ID. | 
| Return value : | a string like "Assembly Program". | 
| TIEXPORT2 uint8_t TICALL tifiles_folder_type(CalcModel model) | 
| model : | a calculator model in #CalcModel enumeration. | 
| Return value : | a type ID. | 
| TIEXPORT2 uint8_t TICALL tifiles_flash_type(CalcModel model) | 
| model : | a calculator model in #CalcModel enumeration. | 
| Return value : | a type ID. | 
| TIEXPORT2 uint8_t TICALL tifiles_idlist_type(CalcModel model) | 
| model : | a calculator model in #CalcModel enumeration. | 
| Return value : | a type ID. | 
| TIEXPORT2 const char *TICALL tifiles_calctype2signature(CalcModel model) | 
| model : | a calculator model. | 
| Return value : | a string like "**TI89**". | 
| TIEXPORT2 CalcModel TICALL tifiles_signature2calctype(const char *s) | 
| s : | a TI file signature like "**TI89**". | 
| Return value : | a calculator model. |