Importing png files to the spreadsheet

[templii]

I have been successfully adding png picture files to my spreadsheet from webpages by this method:
Right click on the image
Save image as
Select show in folder
Drag the image from the folder into the spreadsheet
I have just tried to add an image within a series of similar images and when I try to drag it into the spreadsheet I am confronted with the ASCII Filter Options box

Can this be explained and resolved please?

[Zizi64]

Do not drag pictures into a document. Use the regular method from the Menu.

Insert - Image...

And always optimize the pictures before you embed them into a document file. Decrease the color depth, resize, resample the image to the optimal values.

Otherwise a Calc spreadsheet document is not the best way for create a "photoalbum".

[RoryOF]

The ASCII filter message usually indicates that OpenOffice does not understand the file format. If these are images stored on your computer, are they corrupt?

[John_Ha]

An image from the web often include additional content. See the item about web images in [Tutorial] Some useful hints on using images.

It is quite OK to drag an image file from your PC into a program.