# MX\_CSVDELIM > [HTML Version](mx_csvdelim.htm) **xcall MIAMEX, MX\_CSVDELIM, opcode, delim** MX\_CSVDELIM (MIAMEX 181) allows the CSV delimiter to be set or retrieved. **Parameters** _opcode_ ([Num](num.htm.md)) \[in\] 0 (mxop\_get) to retrieve, 1 to (mxop\_set) set _delim _ ([String](string.htm.md), 1) \[in/out\] the delimiter retrieved (opcode 0) or to be set (opcode 1) **Comments** When set, the specified delimiter overrides the one normally used by the WRITECD and INPUT CSV statements. The setting persists for the remainder of the session, or until changed explicitly by another call to MX\_CSVDELIM. To restore the default behavior, in which the delimiter is determined by the most prevalent of the four typical delimiter characters—comma, semicolon, colon, and tab—in the first line of the file, set the delim to "" (null). **Example** XCALL MIAMEX, MX\_CSVDELIM, 0, OLD'DELIMITER\$  \! retrieve original XCALL MIAMEX, MX\_CSVDELIM, 1, NEW'DELIMITER\$  \! set new OPEN #CH, FILE\$, INPUT XCALL MIAMEX, MX\_CSVDELIM, 1, OLD'DELIMITER\$  \! reset to original delimiter (won't affect this file) INPUT CSV #CH, VAR1, VAR2, ...  \! (uses NEW'DELIMITER\$)