Better way to share comps?

[Ashwani K.]

I have often received comps from my agent over email. Generally, he sends over a 1-page pdf with mortgage and cap rate info. And other times, I have asked him to send the excel file that he used to come up with info. Along with the comps, he sends me the MLS link and any pictures etc of the place.

And, when I am having to deal with contractors, I am having to share pictures of products or home depot links for him to buy for any repair work. 

I would love a way where agent can upload his calculations somewhere, and I can go there to the online calculations and play with numbers myself. Kind of shared calculators I guess.

Is there a better way to share calculations, mls info between agents, buyers (specially group buyers), contractors?