Since the filename itself doesn't describe the content, a "proper text" depends on your role (e.g., if you are the uploader or the recipient). Here are three ways to label it: 1. Descriptive (If you know what's inside)
Data Retrieval Request: Archive Segment 099B823K784D8923 (Part 4) 099B823K784D8923.part4.rar
"Attached is the fourth segment of the compressed archive for [Insert Project Name]. Please ensure all parts (1–[Total Parts]) are in the same directory before attempting to extract." 3. Verification Text Since the filename itself doesn't describe the content,
Use this if you are renaming the file for your own library or sending it to someone else. [Project/Content Name] - Part 4.rar Example: 2024_Project_Archive.part4.rar 2. Professional/Technical 099B823K784D8923.part4.rar