IAEA 2017 Neutron Data Standards in Table Format
A. D. Carlson et al, Nuclear Data Sheets 148 (2018) 143-188. 
https://doi.org/10.1016/j.nds.2018.02.002

Table. 239Pu(n,f) point-wise cross section data. 
It is a TNC at 0.0253 eV and a reference cross section from 0.15 to 200 MeV. 

En is the incident neutron energy. CS is the cross section. DCS is the cross section uncertainty. 
The 1.2 % unrecognized systematic uncertainty is included in the uncertainties in the table (for exclusion of 0.0253 eV point). 
Linear interpolation is recommended except below 30 keV where log-log interpolation should be used. 

En       CS        DCS
MeV      barn      %
2.53E-08 752.4     0.3
1.50E-04 18.805    1.3
2.50E-04 18.060    1.3
3.50E-04 8.594     1.3
4.50E-04 9.623     1.3
5.50E-04 15.622    1.3
6.50E-04 4.547     1.4
7.50E-04 5.698     1.4
8.50E-04 5.063     1.3
9.50E-04 8.426     1.3
1.50E-03 4.528     1.4
2.50E-03 3.314     1.4
3.50E-03 3.019     1.4
4.50E-03 2.390     1.4
5.50E-03 2.307     1.4
6.50E-03 2.037     1.4
7.50E-03 2.116     1.4
8.50E-03 2.227     1.4
9.50E-03 1.871     1.4
1.50E-02 1.788     1.4
2.00E-02 1.743     1.9
2.40E-02 1.639     1.4
3.00E-02 1.641     1.4
4.50E-02 1.534     1.4
5.50E-02 1.554     1.4
6.50E-02 1.569     1.4
7.50E-02 1.563     1.4
8.50E-02 1.515     1.4
9.50E-02 1.546     1.5
1.00E-01 1.557     1.5
1.20E-01 1.514     1.4
1.50E-01 1.508     1.4
1.70E-01 1.503     1.5
1.80E-01 1.496     1.7
1.90E-01 1.466     1.6
2.00E-01 1.486     1.6
2.10E-01 1.541     1.6
2.20E-01 1.504     1.5
2.30E-01 1.520     1.5
2.40E-01 1.477     1.7
2.45E-01 1.498     1.5
2.50E-01 1.508     1.6
2.60E-01 1.513     1.6
2.70E-01 1.513     1.5
2.80E-01 1.560     1.5
3.00E-01 1.532     1.4
3.25E-01 1.546     1.5
3.50E-01 1.530     1.4
3.75E-01 1.556     1.5
4.00E-01 1.560     1.4
4.25E-01 1.558     1.6
4.50E-01 1.579     1.5
4.50E-01 1.579     1.5
4.75E-01 1.572     1.5
5.00E-01 1.573     1.4
5.20E-01 1.573     1.5
5.40E-01 1.572     1.4
5.70E-01 1.589     1.5
6.00E-01 1.595     1.4
6.50E-01 1.624     1.4
7.00E-01 1.636     1.4
7.50E-01 1.700     1.4
8.00E-01 1.705     1.4
8.50E-01 1.699     1.4
9.00E-01 1.680     1.4
9.40E-01 1.687     1.4
9.60E-01 1.723     1.4
9.80E-01 1.723     1.4
1.00E+00 1.735     1.3
1.10E+00 1.747     1.3
1.25E+00 1.848     1.3
1.40E+00 1.924     1.3
1.60E+00 1.948     1.3
1.80E+00 1.951     1.3
2.00E+00 1.978     1.3
2.20E+00 1.963     1.3
2.40E+00 1.924     1.3
2.60E+00 1.906     1.3
2.80E+00 1.889     1.4
3.00E+00 1.856     1.3
3.60E+00 1.809     1.3
4.00E+00 1.769     1.3
4.50E+00 1.742     1.3
4.70E+00 1.726     1.3
5.00E+00 1.690     1.3
5.30E+00 1.682     1.4
5.50E+00 1.662     1.4
5.80E+00 1.688     1.4
6.00E+00 1.770     1.4
6.20E+00 1.841     1.4
6.50E+00 1.931     1.4
7.00E+00 2.061     1.4
7.50E+00 2.189     1.4
7.75E+00 2.225     1.5
8.00E+00 2.280     1.4
8.50E+00 2.259     1.4
9.00E+00 2.255     1.4
1.00E+01 2.249     1.5
1.10E+01 2.243     1.5
1.15E+01 2.226     1.5
1.20E+01 2.239     1.5
1.30E+01 2.331     1.4
1.40E+01 2.404     1.4
1.45E+01 2.419     1.3
1.50E+01 2.416     1.4
1.60E+01 2.444     1.5
1.70E+01 2.365     1.5
1.80E+01 2.341     1.5
2.00E+01 2.357     1.6
2.10E+01 2.366     1.6
2.20E+01 2.376     2.1
2.30E+01 2.377     1.8
2.40E+01 2.311     2.0
2.50E+01 2.351     1.8
2.60E+01 2.337     2.0
2.70E+01 2.331     1.9
2.80E+01 2.359     2.1
2.90E+01 2.307     1.9
3.00E+01 2.368     1.9
3.20E+01 2.331     2.2
3.40E+01 2.302     2.2
3.60E+01 2.223     2.4
3.80E+01 2.154     2.5
4.00E+01 2.186     2.6
4.20E+01 2.140     2.4
4.40E+01 2.142     2.5
4.60E+01 2.130     2.4
4.80E+01 2.097     2.7
5.00E+01 2.072     2.8
5.20E+01 2.076     3.0
5.40E+01 2.049     3.0
5.60E+01 2.078     3.0
5.80E+01 2.052     2.8
6.00E+01 2.028     2.7
6.40E+01 2.004     2.5
6.80E+01 1.943     2.5
7.20E+01 1.901     2.7
7.60E+01 1.890     2.8
8.00E+01 1.862     3.0
8.40E+01 1.854     3.7
8.80E+01 1.776     3.8
9.20E+01 1.728     3.9
9.60E+01 1.711*    3.9
1.00E+02 1.690*    3.8
1.04E+02 1.668*    3.8
1.08E+02 1.667*    4.8
1.12E+02 1.664*    4.7
1.16E+02 1.645*    4.7
1.20E+02 1.621*    4.6
1.28E+02 1.599     4.5
1.36E+02 1.564     4.4
1.44E+02 1.540     4.1
1.52E+02 1.585     4.4
1.60E+02 1.537     4.5
1.68E+02 1.536     4.8
1.76E+02 1.561     4.6
1.84E+02 1.551     4.9
1.92E+02 1.523     4.6
2.00E+02 1.540     4.6