Documentation Index
Fetch the complete documentation index at: https://filla.io/docs/llms.txt
Use this file to discover all available pages before exploring further.
What this does
The file upload field maps to Airtable’s Attachments field type. Respondents can upload one or more files, which are saved directly to the attachment field in your Airtable record. Uploaded files are shown as preview cards inside the form:- images display as large visual previews
- other file types display a file-type card with the filename
- clicking a preview opens or downloads the file
Settings reference
| Setting | Description |
|---|---|
| Allowed file types | Restrict which types of files can be uploaded. Options: Any, Common types, Specific only. |
| File type categories | When “Common types” is selected, choose from preset categories: Images, Documents, Archives, Audio, Video. |
| Allowed extensions | When “Specific only” is selected, enter exact file extensions (e.g., pdf, docx). Press Enter or comma to add each one. Up to 30 extensions. |
| Max file size | Maximum size per individual file. Default is 50 MB. |
| Max number of files | Maximum number of files a respondent can upload in one submission. |
File type categories
When you choose Common types, select from these preset categories:| Category | File types included |
|---|---|
| Images | PNG, JPG, GIF, WebP, SVG |
| Documents | PDF, Word (.docx), Excel (.xlsx), PowerPoint (.pptx) |
| Archives | ZIP, RAR, 7Z |
| Audio | MP3, WAV, OGG, M4A |
| Video | MP4, MOV, AVI, MKV |
Restricting to specific extensions
Choose Specific only when you need precise control. Type each extension without the dot (e.g.,pdf, not .pdf). Each extension must be added separately.
Example: An invoice upload field might restrict to pdf and png only.
File size limits
The Max file size limit applies per file, not per submission total. If a respondent uploads three files, each file is checked individually against the limit. The default limit is 50 MB per file. Airtable itself has its own attachment storage limits based on your Airtable plan.Viewing files in edit mode and read-only mode
When the form loads an existing record, previously uploaded files appear in the same gallery-style preview area.- In editable forms, respondents can add more files and remove existing ones.
- In read-only forms, Filla hides the drop zone and the “Add more files” button entirely. Respondents see only the existing file previews, which they can still open and download. If a read-only field has no files attached, nothing is shown in its place.
Common questions
Can respondents upload multiple files at once?
Can respondents upload multiple files at once?
Yes. Respondents can select multiple files in their file browser or drag and drop multiple files onto the upload area. Each file is validated individually.
Files are uploaded to Airtable’s attachment storage and appear directly in your Airtable record’s attachment field. Filla doesn’t store a separate copy.
Can I show uploaded files on an edit-mode form?
Can I show uploaded files on an edit-mode form?
Yes. When a form is in edit mode and loads an existing record, any files already in the attachment field are displayed as preview cards. Respondents can add more files or remove existing ones unless the field is read-only.
What happens if the respondent uploads a file that exceeds the size limit?
What happens if the respondent uploads a file that exceeds the size limit?
The file is rejected immediately with an error message. The respondent can try again with a smaller file.