I have gene symbol list like following.


    2-Sep
    Hist2h4
    5-Mar
    Nupr1
    7-Sep
    5-Mar
    15-Sep
    11-Sep
    Egam-1c

I have not ever seen "2-Sep" and  "5-Mar" . 
These gene symbol are from where? you know?

Furthermore, do you know some ID conversion application able to change the above gene symbol to Ensemble ID.


Congrats, someone used Excel on the dataset!

https://nsaunders.wordpress.com/2012/10/22/gene-name-errors-and-excel-lessons-not-learned/