Without more context, it is difficult to provide a "review" of the actual data inside. However, these specific numbered files often appear in the following communities:
Often used in the preservation of old software or magazine scans. 1266.7z.001
Files named with simple four-digit numbers like "1266" are frequently associated with curated collections, such as: Without more context, it is difficult to provide
Numbered lists used in retro gaming collections (like No-Intro or TOSEC sets). Without more context
Look for "1266" in the metadata or collection titles.
This indicates the first part of a multi-volume 7-Zip archive. To open it, you generally need all subsequent parts (e.g., .002 , .003 ) located in the same folder.
QB64 Screenshot