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NumXL for Microsoft Excel makes sense of time series analysis:

Build, validate, rank models, and forecast right in Excel
Keep the data, analysis and models linked together
Make and track changes instantly
Share your results by sending just one file

goodness of fit

EGARCH_AIC

Calculates the Akaike's information criterion (AICⁱ) of the given EGARCHⁱ model.

ARMA_LLF

Computes the log-likelihood function (LLFⁱ); LLF is a relative measure of goodness of fit of the statistical model.

ARMA_AIC

Returns the Akaike's information criterion (AICⁱ); AIC is a measure of the goodness of fit of the statistical model.