: Open only the first file in the sequence ( H_B_1488_4K.7z.001 ) using an archiving tool like 7-Zip or WinRAR.
: Where large 4K video files (often several gigabytes) are split to bypass host upload limits. H_B_1488_4K.7z.002
: This identifies the original compression format as 7-Zip , a high-ratio archiving format. : Open only the first file in the sequence ( H_B_1488_4K