Lotus function Equivalent function in Microsoft Excel
@@ INDIRECT
@ABS ABS
@ACOS ACOS
@ASIN ASIN
@ATAN ATAN
@ATAN2 ATAN2
@AVG AVERAGEA
@CELL CELL
@CELLPOINTER CELL

When used without a second argument, the CELL worksheet function returns information about the cell containing the function.

@CHAR CHAR
@CHOOSE CHOOSE
@CLEAN CLEAN
@CODE CODE
@COLS COLUMNS
@COS COS
@COUNT COUNTA
@CTERM NPER

The NPER worksheet function requires you to supply a periodic payment value instead of a future value.

@DATE DATE
@DAVG DAVERAGE
@DAY DAY
@D360

The @D360 function is available only in Lotus 1-2-3 Release 3 or later.

 DAYS360
@DCOUNT DCOUNTA
@DDB DDB
@DGET DGET
@DMAX DMAX
@DMIN DMIN
@DSTD DSTDEVP
@DSTDS DSTDEV
@DSUM

The @DSTDS function is available only in Lotus 1-2-3 Release 3 or later.

 DSUM