> ## Documentation Index
> Fetch the complete documentation index at: https://docs.getoneprofile.ai/llms.txt
> Use this file to discover all available pages before exploring further.
# Import a CSV
> Bring a spreadsheet in as a new table, checking the column names and types Oneprofile guessed before the rows are added.
Oneprofile builds a new table straight from a CSV file. Upload it, check the columns Oneprofile matched, fix anything that looks wrong, then add the rows.
## Import your file
On **Tables**, choose the **Import a CSV** card. You can also click **New** and pick **Import a CSV**.
Drag a CSV onto the dialog, or click to choose one. The first row is used as the column names, and files must be under 50MB.
Oneprofile lists every column under **Column name**, **Type**, and **Sample values**, with a type already guessed, such as **Text**, **Number**, **Date**, or **Email**. Edit a name in its box, change a wrong **Type**, or untick a column to leave it out.
The mapping table shows only the start of a few values. Click the expand icon on a column to read all of them.
**Table name** starts as the file's name. **Rows to import** starts at as many of the file's rows as your table can hold. Lower it to add fewer.
Click **Create table**.
Oneprofile takes you straight to the new table. Adding the rows is a run, so you can start working before it finishes.
## Good to know
While it reads, the drop area says **Reading the file…**. A large file takes a moment. That message means it is working rather than stuck.
The expand icon on a column is labelled **See all sample values**. It opens a dialog titled **Sample values for "…"**, with the column's name in place of the ellipsis.
The dialog lists every sampled value with its row number, and names how many rows of the file it is showing. Click **Close** when you are done.
A column can look empty in the mapping table just because its first values are blank. Open its sample values before you trust the type Oneprofile guessed.
Oneprofile names the file's size and how many rows your plan holds per table, then adds only the rows up to that limit.
An **Upgrade** chip sits next to the message and takes you to raise the limit.
It stays disabled until the mapping is valid, and the dialog names what is wrong. You will see "Include at least one column." or "Every included column needs a name." A column name used twice is called out by name.
**Table name** cannot be blank either. Clearing it puts "The table needs a name." under the field.
## Next steps
Add rows from a tool you already use.
Add columns that fill themselves in.