Lost datatypes when reading
Just like reading from a CSV, information on data type is lost when we read the data back in. This makes Excel files unreliable for caching interim results as well. For alternatives, see Writing to a file
## # A tibble: 3 × 2
## item quantity
## <chr> <dbl>
## 1 brownie 10
## 2 cupcake 5
## 3 cookie 8