Inserting files of any type into container fields
You can use a container field to store files of any type, such as spreadsheet files, word processing files, or any other file type that you want to track. When you insert a file, FileMaker Pro displays the file’s icon and name in the container field, but not the actual content.
Note  To insert packaged files such as Keynote files into a container field, archive or zip the packaged files.
To insert a file of any type into a container field:
1.
2.
Choose Insert menu > File.
3.
If you select Store only a reference to the file, FileMaker Pro doesn't import the file; it only keeps track of where it is on your hard disk. This option may reduce the size of your FileMaker Pro file, but if you move or delete the file, FileMaker Pro won't be able to display it. Choose this option if you want to be able to open the file from the container field.
4.
Click Open.
You see the file’s icon and name in the container field.
Notes
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To open a file that has been inserted into a container field (using Store only a reference to the file), select the container field and then press the Space bar, or double-click the container field.
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If you select Store only a reference to the file, one way to see the location of the file on your hard disk is to create a script using the GetAsText function.
Related topics 
Adding and viewing data troubleshooting
Deleting data from container fields
About container fields