Additional Information to What We Recently Discussed
To add files to the group, and you want to avoid detection by this idiot HEX3D, follow these steps.

group - https://t.me/Hex3DSTL

How to modify the data in the file:
STL files - in any slicer
3MF files - in the Bambu 3D slicer (it is free).

1. Unzip the archives with files

2. Each file, from inside the archive, contains data, such as the date and time when you downloaded the model from his website (by clicking the 'options' button, you will see this information)

3. To remove this information and to insert new one, import the file into any slicer you want, and export it. That's all you have to do.

4. After exporting, the file has new data and does not contain the old data.

5. If you want, post the files directly

6. If you have multiple files, create a new folder and archive them

Images - take a screenshot of the image, and it automatically eliminates all data

The download date of the file can detect when and who downloaded the file from the site
The above steps help you avoid that.