Mathematica supports many formats, with many subformats, variants, and options.
void MLDestroyMark (MLINK link, MLMARK mark) destroys the specified mark on a link.
MLINK MLFromLinkID (MLENV env, long inumb) returns the link object with ID number inumb in the MathLink environment env.
mlint64
(Mathematica MathLink C Function) mlint64 is a MathLink type for storing 64-bit integers.
int MLMessageReady (MLINK link) queries the link object link to see if the link has an out-of-band message.
int MLPutReal (MLINK link, double x) puts the floating-point number x to the MathLink connection specified by link.
mltimeval is a MathLink type used for storing time arguments.
long MLToLinkID (MLINK link) returns the ID number of link.
CSV
(Mathematica Import/Export Format) MIME type: text/comma-separated-values, text/csv CSV tabular data format. Stores records of numerical and textual information as lines, using commas to separate fields. ...
Registered MIME type: video/quicktime Apple QuickTime file format. Multimedia container format. Commonly used for archiving and exchanging video content. Stores audio and ...