An archive tool like 7-Zip to "Extract" the first part, which will automatically stitch the segments together.
However, based on similar naming conventions and search results for "Angelica Custom," this file likely belongs to one of the following categories:
: If this is a digital catalog for hair styling, brands like Noriko's Angelica Wig are widely praised for their realistic "Razberry Ice-R" coloring and high-quality synthetic fibers. Important Note on Multi-Part Files