Quick answer
The file is a Windows Registry export (.reg) that holds one very large REG_BINARY value called “flagGrid …”. What you are seeing inside it is:
• UTF-16-LE text (hence the FF FE byte-order mark at the very start).
• A long series of comma-separated two-digit hex bytes – the standard way a .reg file stores binary data.
• When those hex bytes are converted back to raw bytes they spell ASCII text such as
0.00:0.00,0.00:0.00,0.00:0.00, …
So the binary data itself is just a text grid of floating-point numbers written as “row_value:column_value” pairs, separated by commas. There are 6 600 such pairs (≈ 65 kB of data). It seems to be some numeric “flag grid” or heat-map that an application chose to keep in the registry instead of a normal file.
Nothing in the file is executable or harmful by itself, but double-clicking a .reg file tells Windows to merge it into the registry, which you probably don’t want. If you simply need the data, open it in a text editor or decode the inner hex to retrieve the plain ASCII grid.
No.
The REG_BINARY blob does not contain the byte-stream of any picture format (PNG, JPEG, GIF, BMP, etc.). When the hexadecimal text is decoded it yields plain ASCII such as
0.00:0.00,0.00:0.00,0.07:0.05, …
That is just a long list (6 600 entries) of numeric pairs written “x:y”, separated by commas. Nothing in the data has an image header (no “\x89PNG…”, “JFIF”, “GIF87a/GIF89a”, etc.).
What you actually have is a grid or point cloud of floating-point coordinates that some program decided to store in the registry. If you want to “see” it you can:
- Decode the hex bytes to get the ASCII string.
- Split on commas, then split each token on ‘:’ to obtain x and y floats.
- Feed the (x, y) list to a plotting library (e.g. matplotlib’s scatter or imshow) to visualise the grid.
But there is no embedded picture to extract.