password in exel forgot

Any one can help me to open my exel file please.
I forgot the password was set in the exel file.
Now I couldn't open it, can't remember what I was type in there.
Would you like forward either my emails as:
thdinh@dodo.com.au
thom.dinh@defence.gov.au
Thank you very much for your time and afforts
Regards.
Thom dinh