  A wide range of data formats and proprietary software have traditionally been
used in gamma-ray astronomy, usually developed for a single specific mission or
experiment. However, in recent years there has been an increasing effort
towards making astronomical data open and easily accessible. Within the
gamma-ray community this has translated to the creation of a common data format
across different gamma-ray observatories: the "gamma-astro-data-format" (GADF).
Based on a similar premise, open-source analysis packages, such as Gammapy, are
being developed and aim to provide a single, robust tool which suits the needs
of many experiments at once. In this contribution we show that data from the
High-Altitude Water Cherenkov (HAWC) observatory can be made compatible with
the GADF and present the first GADF-based production of event lists and
instrument response functions for a ground-based wide-field instrument. We use
these data products to reproduce with excellent agreement the published HAWC
Crab spectrum using Gammapy. Having a common data format and analysis tools
facilitates joint analysis between different experiments and effective data
sharing. This will be especially important for next-generation instruments,
such as the proposed Southern Wide-field Gamma-ray Observatory (SWGO) and the
planned Cherenkov Telescope Array (CTA).
