File Storage

VisiHub stores uploaded spreadsheets in S3-compatible object storage (Cloudflare R2), providing fast, reliable access to your files.

Supported formats

VisiHub accepts the following file formats:

Format	Extension	Description
VisiGrid Sheet	.sheet	Native VisiGrid format with full formula and formatting support
CSV	.csv	Comma-separated values
Excel	.xlsx	Microsoft Excel Open XML format

Uploading files

Via the web app

1. Navigate to your dashboard.
2. Click New and select a file to upload.
3. The file is processed and stored automatically.

Via the API

curl -X POST https://api.visihub.com/v1/files \
  -H "Authorization: Bearer <token>" \
  -F "file=@my-spreadsheet.sheet"

See the Endpoints reference for full upload API details.

Via VisiGrid CLI

visigrid publish my-spreadsheet.sheet

File management

From the dashboard you can:

• Rename files by clicking the file name.
• Move files between folders.
• Delete files (moved to trash, permanently deleted after 30 days).
• Download files in their original format.

Sharing

Each uploaded file gets a unique URL. You can share files by:

• Sending the direct link to collaborators.
• Setting visibility to public for anyone to view.
• Restricting access to specific team members.

Storage limits

Storage limits depend on your plan. Check your account settings for current usage and limits.