Does the subject want to ask, "What is the reason why the resume attached to Zhitong Talent Network cannot be uploaded?" The file format is not supported and the file size exceeds the limit.

1. does not support file format: Zhitong Talent Network only supports uploading files with specific formats, such as doc, docx and pdf. The file format is not in the supported list. Please convert it to a supported format and try uploading again.

2. The file size exceeds the limit: Zhitong Talent Network has restrictions on the size of uploaded files. If the file exceeds the limit, it cannot be uploaded. Check whether the file size exceeds the limit and try to compress the file size before uploading.