| Extension | File Description |
| .TDA | Data Files |
| .TDE | Data Files |
| .TDL | Data Files |
| .TDM | Data Files |
| .TDT | Data Files |
| .TEF | Data Files |
| .TET | Data Files |
| .TFA | Data Files |
| .TFI | Data Files |
| .TGF | Data Files |
| .TK3 | Data Files |
| .TL5 | Data Files |
| .TLX | Data Files |
| .TMW | Data Files |
| .TMX | Data Files |
| .TOL | Data Files |
| .TOP | Data Files |
| .TOPC | Data Files |
| .TPB | Data Files |
| .TPF | Data Files |
| .TPS | Data Files |
| .TPZ | Data Files |
| .TR | Data Files |
| .TR3 | Data Files |
| .TRA | Data Files |
| .TRD | Data Files |
| .TRM | Data Files |
| .TRS | Data Files |
| .TS | Data Files |
| .TST | Data Files |
| .TSV | Data Files |
| .TTK | Data Files |
| .TWB | Data Files |
| .TWBX | Data Files |
| .TWM | Data Files |
| .TX? | Data Files |
| .TXA | Data Files |
| .TXD | Data Files |
| .TXF | Data Files |
| .TXN | Data Files |
| .U32 | Data Files |
| .UD | Data Files |
| .UDC | Data Files |
| .UDEB | Data Files |
| .UFDL | Data Files |
| .ULF | Data Files |
| .ULZ | Data Files |
| .UMJ | Data Files |
| .UNITYWEB | Data Files |
| .UOML | Data Files |
| .UPDATE | Data Files |
| .UPR | Data Files |
| .USTAR | Data Files |
| .UVD | Data Files |
| .UVF | Data Files |
| .UVT | Data Files |
| .UVVD | Data Files |
| .UVVF | Data Files |
| .UVVT | Data Files |
| .UVVX | Data Files |
| .UVVZ | Data Files |
| .UVZ | Data Files |
| .UWL | Data Files |
| .VAL | Data Files |
| .VBK | Data Files |
| .VBW | Data Files |
| .VCE | Data Files |
| .VCF | Data Files |
| .VCS | Data Files |
| .VCT | Data Files |
| .VDB | Data Files |
| .VI | Data Files |
| .VIP | Data Files |
| .VMSN | Data Files |
| .VMSS | Data Files |
| Extension | File Description |
| .VMT | Data Files |
| .VOK | Data Files |
| .VPP | Data Files |
| .VPX | Data Files |
| .VRD | Data Files |
| .VSV | Data Files |
| .VSX | Data Files |
| .VUD | Data Files |
| .VVF | Data Files |
| .VXML | Data Files |
| .WAB | Data Files |
| .WAB~ | Data Files |
| .WB1 | Data Files |
| .WB2 | Data Files |
| .WB3 | Data Files |
| .WCAT | Data Files |
| .WCD | Data Files |
| .WCF | Data Files |
| .WDQ | Data Files |
| .WEA | Data Files |
| .WFM | Data Files |
| .WID | Data Files |
| .WINDOWSLIV | Data Files |
| .WJR | Data Files |
| .WK1 | Data Files |
| .WK3 | Data Files |
| .WK4 | Data Files |
| .WKE | Data Files |
| .WNK | Data Files |
| .WPC | Data Files |
| .WPF | Data Files |
| .WPK | Data Files |
| .WQD | Data Files |
| .WSI | Data Files |
| .WSM | Data Files |
| .WSPOLICY | Data Files |
| .WTB | Data Files |
| .WTR | Data Files |
| .XAS | Data Files |
| .XDB | Data Files |
| .XDP | Data Files |
| .XEF | Data Files |
| .XENC | Data Files |
| .XER | Data Files |
| .XFD | Data Files |
| .XFDF | Data Files |
| .XFO | Data Files |
| .XFR | Data Files |
| .XGP | Data Files |
| .XHVML | Data Files |
| .XLC | Data Files |
| .XLGC | Data Files |
| .XLT | Data Files |
| .XMAP | Data Files |
| .XMCD | Data Files |
| .XML | Data Files |
| .XO | Data Files |
| .XPJ | Data Files |
| .XPM | Data Files |
| .XPR | Data Files |
| .XRP | Data Files |
| .XSL | Data Files |
| .XSLT | Data Files |
| .XSN | Data Files |
| .XTG | Data Files |
| .XTM | Data Files |
| .XTP | Data Files |
| .XVML | Data Files |
| .XXD | Data Files |
| .XYZ | Data Files |
| .YANG | Data Files |
| .YGF | Data Files |
| .YIN | Data Files |
| .ZDB | Data Files |
| .ZIM | Data Files |
