Difficult if you don’t know the original format, but XnView click here does read Mac Paint files for example, along with a few others (~_~)
It is free, and often recommended, so nothing much to lose by downloading it, except time.
Huawei P10 review
1995-2015: How technology has changed the world in 20 years
An overview: What leading creative agencies are doing to improve diversity
New iPad, iPhone SE & Red iPhone 7 on sale now
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.