While "CMC.rar" usually refers to a compressed computer file, in the context of papermaking, the process involves mixing CMC powder with water to create a paste that strengthens paper fibers for complex tasks like origami or creating large-scale surfaces. Steps to Create Long or Large Paper with CMC

: Right-click the folder or document you want to archive and select "Add to archive..." .

: Mix approximately one tablespoon of CMC powder per cup of water. Let it sit for several hours (or overnight) until it becomes a clear, thick gel.

If your request was actually about the digital file format , you can create one using the WinRAR utility or similar tools like PeaZip : Install software : Download and install a tool like WinRAR.

: To create a "long" paper, lay out your sheets on a flat, non-stick surface (like a glass table or heavy plastic). Brush a thin layer of CMC paste onto the edges where the sheets will overlap.