Menu command File/ Open the same as Menu button , permits to open not only scanning probe microscopy files, but also to import data from text ASCII files and Bitmap files (extension BMP). The data in text files must be put in three columns (X, Y and Z) for surfaces importing, or in two or one columns for curves importing.
If text file with surface data contents more than 3 columns, more than one image will be opened. The same is for text files with curves. In the columns headings after column name, separated with comma, user can put units of measurement for this column.
The FemtoScan program recognizes file format by its content, while the file extension is used just for user's convenience. It is possible to import many files at once. If the graphical file contains color palette, the height values in the imported file will correspond to palette indexes. Otherwise the height is derived from the intensity of the image.