I am quite new to R. I need to work with a number of lists that I have in excel, but when importing them with `readxl`

the numbers seem to be changing.

I have a spreadsheet (example here), and when I subtract the sum of the tab "target_intputs" to the sum of the tab "target_outputs" in excel, the total is 0 (as it should be, see "comparison" tab). However, after importing it to R, if I compare them using `print(sum(target_inputs) - sum(target_outputs))`

, it gives me 6.007031e-08 as the total.

Here is a sample of the code:

```
library(readxl)
target_inputs <- read_excel("C:\\A Matrix - Table 5 2019-20.xlsx", sheet="target_inputs")
target_outputs <- read_excel("C:\\A Matrix - Table 5 2019-20.xlsx", sheet="target_outputs")
target_inputs <- as.numeric(target_inputs)
target_outputs <- as.numeric(target_outputs)
print(sum(target_inputs) - sum(target_outputs))
```

I assumed there could be a problem with the decimal points, so I tried the `round()`

function and `options(digits=20)`

, etc., but I cannot get rid of the problem. This seems to be happening only in R, as when I export it back again using the code below, the problem seems to disappear.

```
library(writexl)
write_xlsx(target_inputs, "C:\\target_inputs.xlsx")
write_xlsx(target_outputs, "C:\\target_outputs.xlsx")
```

This happens with some datasets, others don't give me the problem.

Any help would be much appreciated, thanks!