: On Android , you can use apps like ZArchiver or RAR to handle these multi-part volumes.
The file is the first segment of a multi-part compressed archive created with 7-Zip . When large files are compressed, they are often split into smaller "volumes" (e.g., .001, .002, .003) to make them easier to upload, download, or store. Essential Extraction Requirements
: You must have every part of the sequence (e.g., file7964.7z.001 , file7964.7z.002 , etc.).
: Download and install the software from the official 7-Zip website.
Select from the menu, then choose "Extract Here" or "Extract to 'file7964'" .