REDCapCAST/reference/file_extension.md

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# DEPRECATED Helper to import files correctly
DEPRECATED Helper to import files correctly
## Usage
``` r
file_extension(filenames)
```
## Arguments
- filenames:
file names
## Value
character vector
## Examples
``` r
file_extension(list.files(here::here(""))[[2]])[[1]]
#> [1] ""
file_extension(c("file.cd..ks", "file"))
#> [1] "ks" ""
```