Converting Vertex Colour to Texture

[KrakenOfTheSea]

I'm using PSXprev to extract models, but one issue with the programme is that the vertex colouring on some models doesn't appear on some modelling programmes, but the colouring will appear in Meshlab as the creator of PSXprev has pointed out. I'd like to export the colouring to a texture so that it will appear on most modelling programmes. Does anyone know how to do this?