Office Takufile Bin is a corporate file transfer service from OGIS-RI Co., Ltd., a subsidiary of the Osaka Gas Group. It ranks among the most recognized corporate file transfer services in Japan, with users rating it highly for cost-effectiveness and ease of operation.

The service supports both sending and receiving files through a dedicated receive-box function, letting organizations collect files from business partners without requiring them to have an account. Same-day setup is available through web signup, and new accounts include an introductory free period. Send and receive history tracking, download passwords, and virus checking round out the security features, with invoice-based payment available for businesses.