How do i include income on TurboTax that was earned abroad? Can I use turbo tax free file for Foreign earned income exclusion ?

No,  you cannot use the Free Edition if you have foreign income.  You will need to use a paid version of the online software or any version of the CD/download.   

All amounts reported on your tax return must be in USD.  See this IRS reference:

https://www.irs.gov/individuals/international-taxpayers/foreign-currency-and-currency-exchange-rates