How to create .llb in labview?

[ctailor]

I would like to build a library for all my subvis for each project I work on.

[DVA]

When editing the VI, just go to Save As... in the File menu, and in the resulting dialogue box (at least here on Windows... for *nix, your results may vary)there is a "New VI Library" button beneath OK and Cancel. Click it to make a new .llb file, and thenceforth you can save your VIs in it.

~DVA

[Dennis_Knutson]

Another way is select Save With Options from your main VI and then select Development Distribution. This will automatically create an llb with all subVIs except those in v.lib. A word of warning (several actually), however. The original reason for an llb was to provide a means of saving VIs with long file names so with modern OS's they are no longer required. A single corrupt VI in an llb can corrupt the whole thing. An llb is not compatible with any sort of version control. For projects that you might want to use common subVIs, separate llb can make things more difficult.