Question

Should be a simple task, but I’m so far unable to find how.

Sample data:

var1 <- list('2003' = 1:3, '2004' = c(4:3), '2005' = c(6,4,1), '2006' = 1:4 )

Unsuccessful code:

library("XLConnect")
wb <- loadWorkbook("var1.xlsx", create = TRUE)
wb <- lapply(var1, function(x) {createSheet(wb, name = x)})
saveWorkbook(wb)

Answer 1

A more concise version of @Andrie’s answer, since the XLConnect API is vectorized:

wb <- loadWorkbook("var1.xlsx", create = TRUE)
createSheet(wb, names(var1))
writeWorksheet(wb, var1, names(var1),header=FALSE)
saveWorkbook(wb)