All normal 3D files except files in .ifc format may be published similarly to 2D files on Asite.
Below are the steps involved in publishing 3D model files in .ifc format:
1. Select the project and destination folder.
2. On the files listing area, click the 'Upload' dropdown and select 'Files' to publish files to Asite. This option validates your permission to publish new files to the folder.
3. A layered page will appear.
4. Select the model files to be published and drag them to the 'Drag Files Here' area or click the 'Select Files' button to browse and select the required files.
If the name of any file selected for publishing matches the name of an existing file in the chosen project folder, it is considered a revision of that particular file in the project. You can click here for detailed help on publishing a revision of an existing file in a project.
5. Click the copy icon to copy the doc ref as the doc title.
6. The fields marked with an asterisk(*) are mandatory to fill. Click the 'Select Existing Doc Ref' icon to select an existing document reference.
Custom Attributes - You can capture the custom attributes for a file here.
Hierarchical Attributes - You can capture the custom hierarchical attributes for a file here.
7. Click the 'Bulk Apply' icon to apply the same attribute value to multiple files.
8. Fill in all mandatory values and click the 'Apply to All' button to apply the entered values to all attributes of the selected files.
9. By clicking the 
icon, you can apply value to a particular attribute through the 'Bulk Apply' option.
To apply values in bulk for a specific field (like Doc Ref), go to the column header in the bulk apply section. Enter your desired value and click the 
down arrow icon next to that column header.
To remove values in bulk from a field, go to the relevant column header, leave the value blank, and click the corresponding down arrow icon.
If you want to apply values in bulk to multiple columns at once, check each relevant column header in the bulk apply section, enter the needed values, and click the 'Apply to All' option at the top left.
To remove values in bulk from several columns simultaneously, go to each column header, leave the values blank, and then click the 'Apply to All' option at the top left. Remember, applying values in bulk does not overwrite any existing values in the selected files. If needed, remove those existing values first and then apply new values in bulk.
10. Click on 'Upload' to publish files with attributes.
11. The activity center displays the progress of file uploads. The activity center screen automatically closes once all the files are published successfully.
Next Article: Publish Assembly / Product Files & Part Files