Friday, April 29, 2011

Importing Excel 2007 into ArcGIS 10

Save table as old Excel file .xls. Check for the following (from webhelp@esri):

1. Make sure the first row of the worksheet is properly formatted, since it will be used for the field names in ArcGIS. You should follow these general best practices for field naming, particularly if you want to join an Excel table to another table in ArcMap:
Field names must start with a letter.
Field names must contain only letters, numbers, and underscores.
Field names must not exceed 64 characters.

2. If you have cells with numeric data, dates, and so on, make sure the content is consistently formatted. ArcMap will scan the first eight rows to determine the field type that should be used. If there are other types of data in those rows, the field will be converted to text when the table is in ArcMap.

3. ArcMap can only read the first 255 characters of a cell. If you have more characters than that, ArcMap converts the field to a BLOB type and you won't be able to read its contents.

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