#' A function
#'
#' @param file A string
#' @param expr A variable in the dataframe
#'
#' @return A dataframe
#' @importFrom dplyr %>%
#' @importFrom readxl excel_sheets
#' @importFrom purrr set_names
#' @importFrom purrr map_df
#' @export
readaexcel=function(file)
file%>%excel_sheets()%>%set_names()%>%map_df(readacleansheet,filename=file)
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