25jkigfkpssj.7z.004 -

Use The Unarchiver or Unzip One to open the first part of the sequence.

Do you have the of this archive (specifically the .001 file) saved in the same folder? 25jkigfkpssj.7z.004

Use an app like ZArchiver to navigate to the files and extract the .001 part. Use The Unarchiver or Unzip One to open