You can import a file of up to 10mb of these file types:
Only the first sheet will be imported into Geomancer. Also, please make sure that the first row contains header information with column names.
Comma-separated value (.csv) files are a standard way to represent tabular data. Cell values with comma, newline or quotes must be quoted and quotes escaped by doubling. For example: "17"" LCD display".
By convention, the first row acts as header and defines the names of the columns in the data. However, you can specify which row is the header during import.
Many of these guidelines were lifted from Google Fusion Tables, which has excellent documentation.