I would like to import some xlsx files into rstudio. These files are all in the same folder, but there are also some other xlsx files in there, that I am not interested in:
- Alles_2017.xlsx
- Alles_2018.xlsx
- Alles_2019.xlsx
- Alles_2020_incl_Oct.xlsx
- Blabla.xlsx
- Idontknow.xlsx
I would like to import all four "Alles_...." files building a single dataframe (called for example All) containing all this data. And I would like the function to ignore every other file not starting with "Alles_"
Which function can I use?
Thank you in advance!